<?xml version="1.0" encoding="UTF-8"?>
<quiz>
 <!-- categoryid: 438 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/biquadrades, sistemes i sistemes NL</text></category></question>
 
 <!-- resourceid-resourcedataid: 4317-3891 -->
 <question type="multianswerwiris">
    <name><text>Problema de l'examen tipus test</text>
</name>
    <questiontext format="html">
<text><![CDATA[En un examen de #p preguntes et donen dos punts per cada encert i te’n treuen #e per cada error. Per aprovar, és obligatori contestar totes les preguntes, i cal treure, almenys, #p punts. (Les no contestades compten com a incorrectes)<div>Quantes preguntes s’han de contestar correctament per aprovar?</div><div><div><div>CORRECTES<font class="Apple-style-span" size="2"> </font>= {#1}</div></div><div><meta charset="utf-8" />INCORRECTES<font class="Apple-style-span" size="2"> </font>= {#2}</div><div><br /><meta charset="utf-8" /></div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[En un examen de #p preguntes et donen dos punts per cada encert i te’n treuen #e per cada error. Per aprovar, és obligatori contestar totes les preguntes, i cal treure, almenys, #p punts. (Les no contestades compten com a incorrectes)<div>Quantes preguntes s’han de contestar correctament per aprovar?</div><div><div><div>CORRECTES<font class="Apple-style-span" size="2"> </font>= {1:SA:=\#c}</div></div><div><meta charset="utf-8" />INCORRECTES<font class="Apple-style-span" size="2"> </font>= {1:SA:=\#m}</div><div><br /><meta charset="utf-8" /></div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»e«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»3«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«mo»*«/mo»«mn»0«/mn»«mo».«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»=«/mo»«mi»p«/mi»«/mtd»«/mtr»«mtr»«mtd»«mn»2«/mn»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»-«/mo»«mi»e«/mi»«mo»*«/mo»«mi»y«/mi»«mo»=«/mo»«mi»p«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»m«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»decimal«/mi»«mo»(«/mo»«mi»c«/mi»«mo»)«/mo»«mo»=«/mo»«mn»0«/mn»«mo».«/mo»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»13«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»e«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»0.6«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8.«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»m«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»5.«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4318-3892 -->
 <question type="multianswerwiris">
    <name><text>Problema rectangle semblant</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div>Calcula les dimensions d’un rectangle de diagonal igual a #d m, sabent que és semblant a un altre els costats del qual fan #a m i #b m.</div><div><div><div>COSTAT CURT<font class="Apple-style-span" size="2"> </font>= {#1}</div></div><div><meta charset="utf-8" />COSTAT LLARG<font class="Apple-style-span" size="2"> </font>= {#2}</div><div><br /><meta charset="utf-8" /></div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div>Calcula les dimensions d’un rectangle de diagonal igual a #d m, sabent que és semblant a un altre els costats del qual fan #a m i #b m.</div><div><div><div>COSTAT CURT<font class="Apple-style-span" size="2"> </font>= {1:SA:=\#c}</div></div><div><meta charset="utf-8" />COSTAT LLARG<font class="Apple-style-span" size="2"> </font>= {1:SA:=\#l}</div><div><br /><meta charset="utf-8" /></div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»3«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»a«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»d«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«/mtd»«/mtr»«mtr»«mtd»«mfrac»«mi»x«/mi»«mi»a«/mi»«/mfrac»«mo»=«/mo»«mfrac»«mi»y«/mi»«mi»b«/mi»«/mfrac»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mo»{«/mo»«mi»c«/mi»«mo»,«/mo»«mi»l«/mi»«mo»}«/mo»«mo»=«/mo»«mi»ordena«/mi»«mo»(«/mo»«mo»{«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»,«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«mo»}«/mo»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»c«/mi»«mo»§isin;«/mo»«rationals/»«mo»§and;«/mo»«mi»c«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»d«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»47«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»12«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»16«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac»«mn»141«/mn»«mn»5«/mn»«/mfrac»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»l«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac»«mn»188«/mn»«mn»5«/mn»«/mfrac»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4319-3893 -->
 <question type="multianswerwiris">
    <name><text>sistema NL1</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={1:SA:=\#x1~=\#x2}  y<sub>1</sub>={1:SA:=\#y1~=\#y2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x1~=\#x2}  y<sub>2</sub>={1:SA:=\#y1~=\#y2}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»100«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«mrow»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»20«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4320-1607 -->
 <question type="multianswerwiris">
    <name><text>sistema NL1</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={1:SA:=\#x1~=\#x2}  y<sub>1</sub>={1:SA:=\#y1~=\#y2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x1~=\#x2}  y<sub>2</sub>={1:SA:=\#y1~=\#y2}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»100«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«mrow»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»20«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4321-3894 -->
 <question type="multianswerwiris">
    <name><text>sistema NL2</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#c«/mi»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#c«/mi»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={1:SA:=\#x1~=\#x2}  y<sub>1</sub>={1:SA:=\#y1~=\#y2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x1~=\#x2}  y<sub>2</sub>={1:SA:=\#y1~=\#y2}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»100«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»c«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»29«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»5«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4322-3895 -->
 <question type="multianswerwiris">
    <name><text>sistema NL2b</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#c«/mi»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#c«/mi»«mo»§nbsp;«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div>x<sub>1</sub>={1:SA:=\#x1~=\#x2}  y<sub>1</sub>={1:SA:=\#y1~=\#y2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x1~=\#x2}  y<sub>2</sub>={1:SA:=\#y1~=\#y2}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»100«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»c«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mi»y«/mi»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»29«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»2«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»5«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4323-3896 -->
 <question type="multianswerwiris">
    <name><text>sistema NL3</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div><b>Ordena les solucions de menor a major valor de x i després de y:</b></div><div><br /></div><div>x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div><div>x<font class="Apple-style-span" size="2"><sub>3</sub></font>={#5}  y<sub>3</sub>={#6}</div><div>x<font class="Apple-style-span" size="2"><sub>4</sub></font>={#7}  y<sub>4</sub>={#8}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>8</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div><b>Ordena les solucions de menor a major valor de x i després de y:</b></div><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}  y<sub>1</sub>={1:SA:=\#y1}</div><div>x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x2}  y<sub>2</sub>={1:SA:=\#y2}</div><div>x<font class="Apple-style-span" size="2"><sub>3</sub></font>={1:SA:=\#x3}  y<sub>3</sub>={1:SA:=\#y3}</div><div>x<font class="Apple-style-span" size="2"><sub>4</sub></font>={1:SA:=\#x4}  y<sub>4</sub>={1:SA:=\#y4}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»20«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»-«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«mo»=«/mo»«mn»4«/mn»«/mrow»«/apply»«mrow»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x3«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»3«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y3«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»3«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x4«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»4«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y4«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»4«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»22«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«msqrt»«mn»6«/mn»«/msqrt»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msqrt»«mn»6«/mn»«/msqrt»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4324-3897 -->
 <question type="multianswerwiris">
    <name><text>sistema NL3</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div><div><b><div style="font-weight: normal; "><b>Ordena les solucions de menor a major valor de x </b><b><span class="Apple-style-span" style="font-weight: normal; "><div style="display: inline !important; "><b><span class="Apple-style-span" style="font-weight: normal; "><b>i després de y</b></span></b></div></span></b><b><span class="Apple-style-span" style="font-weight: normal; "><div style="display: inline !important; "><b>:</b></div></span></b></div><div style="font-weight: normal; "><br /></div><div style="font-weight: normal; ">x<sub>1</sub>={#1}  y<sub>1</sub>={#2}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>2</sub></font>={#3}  y<sub>2</sub>={#4}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>3</sub></font>={#5}  y<sub>3</sub>={#6}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>4</sub></font>={#7}  y<sub>4</sub>={#8}</div></b></div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>8</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#a«/mi»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mi»#b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span></div><div><div><b><div style="font-weight: normal; "><b>Ordena les solucions de menor a major valor de x </b><b><span class="Apple-style-span" style="font-weight: normal; "><div style="display: inline !important; "><b><span class="Apple-style-span" style="font-weight: normal; "><b>i després de y</b></span></b></div></span></b><b><span class="Apple-style-span" style="font-weight: normal; "><div style="display: inline !important; "><b>:</b></div></span></b></div><div style="font-weight: normal; "><br /></div><div style="font-weight: normal; ">x<sub>1</sub>={1:SA:=\#x1}  y<sub>1</sub>={1:SA:=\#y1}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>2</sub></font>={1:SA:=\#x2}  y<sub>2</sub>={1:SA:=\#y2}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>3</sub></font>={1:SA:=\#x3}  y<sub>3</sub>={1:SA:=\#y3}</div><div style="font-weight: normal; ">x<font class="Apple-style-span" size="2"><sub>4</sub></font>={1:SA:=\#x4}  y<sub>4</sub>={1:SA:=\#y4}</div></b></div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»20«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»S«/mi»«mo»=«/mo»«mi»resol«/mi»«mfenced close=¨}¨ open=¨{¨»«mtable align=¨center¨»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»-«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»x«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»+«/mo»«mi»y«/mi»«mo»§Hat;«/mo»«mn»2«/mn»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«mo»=«/mo»«mn»4«/mn»«/mrow»«/apply»«mrow»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»§isin;«/mo»«rationals/»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»1«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y2«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»2«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x3«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»3«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y3«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»3«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x4«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»4«/mn»«/msub»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y4«/mi»«mo»=«/mo»«msub»«mi»S«/mi»«mn»4«/mn»«/msub»«mo»(«/mo»«mi»y«/mi»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»longitud«/mi»«mo»(«/mo»«mi»S«/mi»«mo»)«/mo»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»22«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«msqrt»«mn»6«/mn»«/msqrt»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»y2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msqrt»«mn»6«/mn»«/msqrt»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- categoryid: 440 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. de segon grau/Amb manipulació previa</text></category></question>
 
 <!-- resourceid-resourcedataid: 4329-3899 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents, +- enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mrow»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mi»x1«/mi»«/mfenced»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«mo»+«/mo»«mi»sol«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«mo»,«/mo»«mn»4«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»,«/mo»«mn»6«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»51«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»19«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4330-3899 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents, +- enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mrow»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mi»x1«/mi»«/mfenced»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«mo»+«/mo»«mi»sol«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«mo»,«/mo»«mn»4«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»,«/mo»«mn»6«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»51«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»19«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4331-3899 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents, +- enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mrow»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mi»x1«/mi»«/mfenced»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«mo»+«/mo»«mi»sol«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«mo»,«/mo»«mn»4«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»,«/mo»«mn»6«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»51«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»19«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4332-3899 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents, +- enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mrow»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mrow»«/mfenced»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mfenced close=¨§verbar;¨ open=¨§verbar;¨»«mi»x1«/mi»«/mfenced»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«mo»+«/mo»«mi»sol«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«mo»,«/mo»«mn»4«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»,«/mo»«mn»6«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»51«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»-«/mo»«mn»19«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4325-3898 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mo»-«/mo»«mn»3«/mn»«mo»,«/mo»«mn»3«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»24«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»45«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»30«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»51«/mn»«mo»,«/mo»«mo»-«/mo»«mn»7«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»6«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4326-3898 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mo»-«/mo»«mn»3«/mn»«mo»,«/mo»«mn»3«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»24«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»45«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»30«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»51«/mn»«mo»,«/mo»«mo»-«/mo»«mn»7«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»6«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4327-3898 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mo»-«/mo»«mn»3«/mn»«mo»,«/mo»«mn»3«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»24«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»45«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»30«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»51«/mn»«mo»,«/mo»«mo»-«/mo»«mn»7«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»6«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4328-3898 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (2 diferents)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mo»-«/mo»«mn»3«/mn»«mo»,«/mo»«mn»3«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»24«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»45«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»30«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»51«/mn»«mo»,«/mo»«mo»-«/mo»«mn»7«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»6«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4333-3900 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (zero doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«mo»,«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»16«/mn»«mo»,«/mo»«mo»-«/mo»«mn»18«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»24«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»8«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4334-3900 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (zero doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«mo»,«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»16«/mn»«mo»,«/mo»«mo»-«/mo»«mn»18«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»24«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»8«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4335-3900 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (zero doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«mo»,«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»16«/mn»«mo»,«/mo»«mo»-«/mo»«mn»18«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»24«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»8«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4336-3900 -->
 <question type="multianswerwiris">
    <name><text>manipulacio+resolucio (zero doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div style="text-align: center; "><font size="5"><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi mathvariant=&quot;bold-italic&quot;»#p«/mi»«mo»=«/mo»«mi mathvariant=&quot;bold-italic&quot;»#q«/mi»«/math»</span></font><br /></div><div>Ordena les solucions de <b>més petita a més gran</b>:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»:«/mo»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»sol«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»aux«/mi»«mo»=«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»a«/mi»«mo»(«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»sol«/mi»«mo»+«/mo»«mi»aux«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mi»aux«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»sol«/mi»«mo»,«/mo»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»2«/mn»«mo»,«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»16«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»16«/mn»«mo»,«/mo»«mo»-«/mo»«mn»18«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»24«/mn»«mo»,«/mo»«mo»-«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»8«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- categoryid: 441 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. de segon grau/directes: ax^2+bx+c=0</text></category></question>
 
 <!-- resourceid-resourcedataid: 4337-3901 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions +-enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mi»x2«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»1331«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4338-3901 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions +-enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mi»x2«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»1331«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4339-3901 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions +-enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mi»x2«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»1331«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4340-3901 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions +-enter)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mo»-«/mo»«mi»x2«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»,«/mo»«mn»11«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»1331«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4341-3902 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions entera i fracció)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mrow»«mrow»«mi»x2«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»x2«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mo»-«/mo»«mfrac»«mn»46«/mn»«mn»5«/mn»«/mfrac»«mo»,«/mo»«mn»5«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»96«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»460«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4342-3902 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions entera i fracció)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mrow»«mrow»«mi»x2«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»x2«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mo»-«/mo»«mfrac»«mn»46«/mn»«mn»5«/mn»«/mfrac»«mo»,«/mo»«mn»5«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»96«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»460«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4343-3902 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions entera i fracció)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mrow»«mrow»«mi»x2«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»x2«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mo»-«/mo»«mfrac»«mn»46«/mn»«mn»5«/mn»«/mfrac»«mo»,«/mo»«mn»5«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»96«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»460«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4344-3902 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions entera i fracció)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mrow»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mrow»«mrow»«mi»x2«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»x2«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mo»-«/mo»«mfrac»«mn»46«/mn»«mn»5«/mn»«/mfrac»«mo»,«/mo»«mn»5«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mn»96«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»460«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4345-3903 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions enteres)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»6«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»14«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»48«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4346-3903 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions enteres)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»6«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»14«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»48«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4347-3903 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions enteres)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»6«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»14«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»48«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4348-3903 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (2 solucions enteres)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»15«/mn»«mo»,«/mo»«mn»15«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»6«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»14«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»48«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4349-3904 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (solucio doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»64«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»256«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4350-3904 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (solucio doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»64«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»256«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4351-3904 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (solucio doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»64«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»256«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4352-3904 -->
 <question type="multianswerwiris">
    <name><text>ax^2+bx+c=0 (solucio doble)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{#1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{#2}<br /></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació de segon grau següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mi»#p«/mi»«mo»=«/mo»«mn»0«/mn»«/math»</span><br /></div><div>Ordena les solucions de més petita a més gran:</div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x1}<br /></div><div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»=«/mo»«/math»</span>{:SA:=#x2}<br /></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»x2«/mi»«mo»=«/mo»«mi»x1«/mi»«/mtd»«/mtr»«/mtable»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»4«/mn»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x1«/mi»«mo»)«/mo»«mo»*«/mo»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mi»x2«/mi»«mo»)«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»p«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«mn»4«/mn»«mo»*«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»-«/mo»«mn»64«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»256«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- categoryid: 443 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau</text></category></question>
 
 <!-- resourceid-resourcedataid: 4353-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>d1</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>7</value>
        </dataset_item>
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</question>
 
 <!-- resourceid-resourcedataid: 4354-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <image></image>
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<text></text>
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    <defaultgrade>1</defaultgrade>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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</question>
 
 <!-- resourceid-resourcedataid: 4355-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <image></image>
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<text></text>
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    <defaultgrade>1</defaultgrade>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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 <!-- resourceid-resourcedataid: 4356-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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           <number>12</number>
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           <number>13</number>
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           <number>14</number>
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           <number>16</number>
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</status>
    <name><text>n3</text>
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           <number>13</number>
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           <value>-14</value>
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           <number>18</number>
           <value>6</value>
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           <number>19</number>
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           <number>20</number>
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</question>
 
 <!-- resourceid-resourcedataid: 4357-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
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    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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    <name><text>d1</text>
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    <minimum><text>2</text>
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           <number>1</number>
           <value>2</value>
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           <number>2</number>
           <value>4</value>
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        <dataset_item>
           <number>3</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>7</value>
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        <dataset_item>
           <number>7</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>3</value>
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        <dataset_item>
           <number>9</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>14</value>
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        <dataset_item>
           <number>11</number>
           <value>14</value>
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        <dataset_item>
           <number>12</number>
           <value>12</value>
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        <dataset_item>
           <number>13</number>
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        <dataset_item>
           <number>14</number>
           <value>11</value>
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        <dataset_item>
           <number>15</number>
           <value>14</value>
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        <dataset_item>
           <number>16</number>
           <value>3</value>
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        <dataset_item>
           <number>17</number>
           <value>3</value>
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        <dataset_item>
           <number>18</number>
           <value>3</value>
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        <dataset_item>
           <number>19</number>
           <value>10</value>
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           <number>20</number>
           <value>6</value>
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    <number_of_items>20</number_of_items>
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    <status><text>private</text>
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    <name><text>d2</text>
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    <type>calculated</type>
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    <minimum><text>2</text>
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    <itemcount>20</itemcount>
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           <number>8</number>
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           <number>9</number>
           <value>10</value>
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           <number>10</number>
           <value>6</value>
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           <number>11</number>
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           <number>12</number>
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           <number>14</number>
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        <dataset_item>
           <number>15</number>
           <value>6</value>
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        <dataset_item>
           <number>16</number>
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           <number>17</number>
           <value>4</value>
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           <number>18</number>
           <value>14</value>
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        <dataset_item>
           <number>19</number>
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           <value>6</value>
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    <status><text>private</text>
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    <name><text>d3</text>
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    <type>calculated</type>
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           <number>11</number>
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        <dataset_item>
           <number>12</number>
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           <number>14</number>
           <value>5</value>
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        <dataset_item>
           <number>15</number>
           <value>4</value>
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        <dataset_item>
           <number>16</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>7</value>
        </dataset_item>
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    <number_of_items>20</number_of_items>
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<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n4</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
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    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
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    <itemcount>20</itemcount>
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           <number>1</number>
           <value>3</value>
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        <dataset_item>
           <number>2</number>
           <value>13</value>
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        <dataset_item>
           <number>3</number>
           <value>13</value>
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           <number>4</number>
           <value>14</value>
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           <number>5</number>
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           <number>6</number>
           <value>10</value>
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           <number>7</number>
           <value>8</value>
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           <number>8</number>
           <value>8</value>
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           <number>9</number>
           <value>4</value>
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        <dataset_item>
           <number>10</number>
           <value>10</value>
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        <dataset_item>
           <number>11</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>5</value>
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        <dataset_item>
           <number>13</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>4</value>
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        <dataset_item>
           <number>16</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>11</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n1</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-1</value>
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        <dataset_item>
           <number>4</number>
           <value>1</value>
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        <dataset_item>
           <number>5</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>13</value>
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        <dataset_item>
           <number>9</number>
           <value>-3</value>
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        <dataset_item>
           <number>10</number>
           <value>-5</value>
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           <number>11</number>
           <value>6</value>
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        <dataset_item>
           <number>12</number>
           <value>11</value>
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        <dataset_item>
           <number>13</number>
           <value>11</value>
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        <dataset_item>
           <number>14</number>
           <value>-14</value>
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        <dataset_item>
           <number>15</number>
           <value>1</value>
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        <dataset_item>
           <number>16</number>
           <value>-6</value>
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        <dataset_item>
           <number>17</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>8</value>
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           <number>19</number>
           <value>-15</value>
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        <dataset_item>
           <number>20</number>
           <value>4</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n2</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
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    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
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    <itemcount>20</itemcount>
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        <dataset_item>
           <number>3</number>
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           <number>4</number>
           <value>-7</value>
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        <dataset_item>
           <number>5</number>
           <value>-13</value>
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        <dataset_item>
           <number>6</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>-12</value>
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        <dataset_item>
           <number>13</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>-8</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>-2</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n3</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
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    <itemcount>20</itemcount>
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        <dataset_item>
           <number>1</number>
           <value>-3</value>
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        <dataset_item>
           <number>2</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-4</value>
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        <dataset_item>
           <number>4</number>
           <value>13</value>
        </dataset_item>
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           <number>5</number>
           <value>-1</value>
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        <dataset_item>
           <number>6</number>
           <value>4</value>
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           <number>7</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>-6</value>
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           <number>9</number>
           <value>8</value>
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        <dataset_item>
           <number>10</number>
           <value>1</value>
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        <dataset_item>
           <number>11</number>
           <value>-7</value>
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        <dataset_item>
           <number>12</number>
           <value>14</value>
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        <dataset_item>
           <number>13</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>-10</value>
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        <dataset_item>
           <number>16</number>
           <value>-5</value>
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        <dataset_item>
           <number>17</number>
           <value>-14</value>
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        <dataset_item>
           <number>18</number>
           <value>6</value>
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        <dataset_item>
           <number>19</number>
           <value>15</value>
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        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4358-3906 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
 <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
 <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
 <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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 <!-- resourceid-resourcedataid: 4359-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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<text></text>
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    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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</status>
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</name>
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<dataset_definition>
    <status><text>private</text>
</status>
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</name>
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<dataset_definition>
    <status><text>private</text>
</status>
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</name>
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<dataset_definition>
    <status><text>private</text>
</status>
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</name>
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</status>
    <name><text>n3</text>
</name>
    <type>calculated</type>
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</distribution>
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</minimum>
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           <number>14</number>
           <value>-14</value>
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           <value>-10</value>
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           <number>16</number>
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</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- categoryid: 444 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Equacions amb denominadors</text></category></question>
 
 <!-- resourceid-resourcedataid: 4360-3907 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-10 + 2 x } {2} = \frac{-2 x  + 3} {-3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-10 + 2 x } {2} = \frac{-2 x  + 3} {-3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4361-3908 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-11 + 5 x } {-2} = \frac{2 x  + 11} {-3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-11 + 5 x } {-2} = \frac{2 x  + 11} {-3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4363-3910 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-12 - 8 x } {-4} + \frac{3 - 7 x } {4} = 3 x  + 12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-12 - 8 x } {-4} + \frac{3 - 7 x } {4} = 3 x  + 12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4362-3909 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-12 + 3 x } {4} = \frac{8 - 4 x } {-4} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-12 + 3 x } {4} = \frac{8 - 4 x } {-4} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4364-3911 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-14 - 3 x } {-2} = \frac{4 - 2 x } {-4} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-14 - 3 x } {-2} = \frac{4 - 2 x } {-4} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4365-3912 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-19 x  + 1} {2} + \frac{-22 + 2 x } {-2} = 14 - 13 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-19 x  + 1} {2} + \frac{-22 + 2 x } {-2} = 14 - 13 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4369-3916 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 10} {-4} + \frac{2 x  + 4} {-3} = 2 x  + 25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 10} {-4} + \frac{2 x  + 4} {-3} = 2 x  + 25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4370-3917 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 16} {-3} = \frac{-2 x  - 8} {-2} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 16} {-3} = \frac{-2 x  - 8} {-2} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4371-3918 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 4} {-2} + \frac{-3 x  - 1} {2} = 2 x  - 16 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 4} {-2} + \frac{-3 x  - 1} {2} = 2 x  - 16 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4366-3913 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 14} {3} + \frac{-2 x  - 2} {-2} = 2 x  - 11 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 14} {3} + \frac{-2 x  - 2} {-2} = 2 x  - 11 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4367-3914 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 2} {-4} = \frac{3 x  + 5} {4} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 2} {-4} = \frac{3 x  + 5} {4} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4368-3915 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 8} {-6} = \frac{-14 + 2 x } {3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 8} {-6} = \frac{-14 + 2 x } {3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4372-3919 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-23 x  + 8} {5} = \frac{20 x  - 2} {-6} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-23 x  + 8} {5} = \frac{20 x  - 2} {-6} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4373-3920 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 + 3 x } {-12} + \frac{-2 x  + 8} {2} = -1 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 + 3 x } {-12} + \frac{-2 x  + 8} {2} = -1 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4374-3921 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  - 5} {-5} + \frac{1 - 3 x } {-2} = -14 + 5 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  - 5} {-5} + \frac{1 - 3 x } {-2} = -14 + 5 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4375-3922 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  - 8} {-2} + \frac{3 x  + 12} {-3} = 2 x  + 12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  - 8} {-2} + \frac{3 x  + 12} {-3} = 2 x  + 12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4378-3925 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-4 - 2 x } {-4} = \frac{-2 x  - 9} {-3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-4 - 2 x } {-4} = \frac{-2 x  - 9} {-3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4376-3923 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-4 + 4 x } {-3} = \frac{-5 x  - 9} {2} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-4 + 4 x } {-3} = \frac{-5 x  - 9} {2} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4377-3924 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-4 + 4 x } {3} + \frac{-5 x  - 1} {-7} = 4 x  - 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-4 + 4 x } {3} + \frac{-5 x  - 1} {-7} = 4 x  - 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4379-3926 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-6 + 12 x } {-2} = \frac{-10 + 8 x } {-2} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-6 + 12 x } {-2} = \frac{-10 + 8 x } {-2} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4380-3927 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-6 + 2 x } {-3} = \frac{-6 - 2 x } {6} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-6 + 2 x } {-3} = \frac{-6 - 2 x } {6} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4382-3929 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10 - 4 x } {-11} = \frac{-2 + 6 x } {10} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10 - 4 x } {-11} = \frac{-2 + 6 x } {10} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4381-3928 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10 + 4 x } {-6} + \frac{-2 x  + 22} {2} = -4 + 5 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10 + 4 x } {-6} + \frac{-2 x  + 22} {2} = -4 + 5 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4383-3930 -->
 <question type="shortanswer">
    <name><text>$$ \frac{12 - 4 x } {-2} = \frac{2 x  + 6} {3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{12 - 4 x } {-2} = \frac{2 x  + 6} {3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4384-3931 -->
 <question type="shortanswer">
    <name><text>$$ \frac{13 - 2 x } {7} + \frac{-2 x  - 24} {-2} = -9 - 5 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{13 - 2 x } {7} + \frac{-2 x  - 24} {-2} = -9 - 5 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4385-3932 -->
 <question type="shortanswer">
    <name><text>$$ \frac{15 x  - 9} {2} + \frac{25 x  + 9} {-4} = 8 + 16 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{15 x  - 9} {2} + \frac{25 x  + 9} {-4} = 8 + 16 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4393-3940 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 1} {3} + \frac{2 - 2 x } {-2} = -5 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 1} {3} + \frac{2 - 2 x } {-2} = -5 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4394-3941 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 2} {-7} = \frac{-6 - 4 x } {9} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 2} {-7} = \frac{-6 - 4 x } {9} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4395-3942 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 4} {-6} + \frac{3 x  - 6} {2} = 3 x  - 17 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 4} {-6} + \frac{3 x  - 6} {2} = 3 x  - 17 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4396-3943 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 4} {-6} = \frac{-2 x  - 4} {4} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 4} {-6} = \frac{-2 x  - 4} {4} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4386-3933 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 10} {-3} = \frac{-3 x  - 3} {3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 10} {-3} = \frac{-3 x  - 3} {3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4387-3934 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 12} {3} + \frac{-12 - 2 x } {6} = 22 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 12} {3} + \frac{-12 - 2 x } {6} = 22 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4388-3935 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 4} {-7} + \frac{2 x  + 6} {3} = -2 x  - 20 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 4} {-7} + \frac{2 x  + 6} {3} = -2 x  - 20 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4389-3936 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 4} {2} = \frac{-2 x  + 3} {-3} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 4} {2} = \frac{-2 x  + 3} {-3} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4390-3937 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 4} {5} = \frac{8 + 2 x } {6} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 4} {5} = \frac{8 + 2 x } {6} $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4391-3938 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 6} {3} + \frac{2 + 2 x } {-2} = 3 x  - 19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 6} {3} + \frac{2 + 2 x } {-2} = 3 x  - 19 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4392-3939 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 7} {-25} + \frac{4 + 2 x } {-2} = 6 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 7} {-25} + \frac{4 + 2 x } {-2} = 6 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4397-3944 -->
 <question type="shortanswer">
    <name><text>$$ \frac{25 + 3 x } {2} + \frac{5 x  + 5} {-2} = 2 x  + 25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{25 + 3 x } {2} + \frac{5 x  + 5} {-2} = 2 x  + 25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4398-3945 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 - 2 x } {-7} + \frac{2 x  - 12} {3} = 2 x  - 17 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{3 - 2 x } {-7} + \frac{2 x  - 12} {3} = 2 x  - 17 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
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12
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        <text>

        </text>
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 <!-- resourceid-resourcedataid: 4399-3946 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 - 2 x } {5} = \frac{12 + 2 x } {-2} $$</text>
</name>
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<text>$$ \frac{3 - 2 x } {5} = \frac{12 + 2 x } {-2} $$</text>
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<text></text>
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-11
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        <text>

        </text>
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 <question type="shortanswer">
    <name><text>$$ \frac{4 - 2 x } {-4} + \frac{-2 x  + 2} {-2} = 3 + 2 x  $$</text>
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<text>$$ \frac{4 - 2 x } {-4} + \frac{-2 x  + 2} {-2} = 3 + 2 x  $$</text>
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    <image></image>
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<text></text>
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-10
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        <text>

        </text>
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 <question type="shortanswer">
    <name><text>$$ \frac{4 x  + 2} {-7} + \frac{-12 - 2 x } {-3} = 4 x  - 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{4 x  + 2} {-7} + \frac{-12 - 2 x } {-3} = 4 x  - 8 $$</text>
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    <image></image>
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<text></text>
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      <text>
3
      </text>
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        <text>

        </text>
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 <!-- resourceid-resourcedataid: 4402-3949 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 + 4 x } {-9} + \frac{-4 - 3 x } {-2} = 4 x  + 19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 + 4 x } {-9} + \frac{-4 - 3 x } {-2} = 4 x  + 19 $$</text>
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    <image></image>
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<text></text>
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-6
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 <question type="shortanswer">
    <name><text>$$ \frac{7 - 2 x } {-5} = \frac{-2 x  + 1} {-7} $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{7 - 2 x } {-5} = \frac{-2 x  + 1} {-7} $$</text>
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<text></text>
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      <text>
11
      </text>
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        <text>

        </text>
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 <question type="shortanswer">
    <name><text>$$ \frac{7 x  - 1} {-3} + \frac{6 x  - 12} {-4} = 1 - 5 x  $$</text>
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    <questiontext format="moodle_auto_format">
<text>$$ \frac{7 x  - 1} {-3} + \frac{6 x  - 12} {-4} = 1 - 5 x  $$</text>
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<text></text>
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-2
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        <text>

        </text>
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 <question type="shortanswer">
    <name><text>$$ \frac{7 x  + 8} {-2} = \frac{-12 x  + 2} {2} $$</text>
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    <questiontext format="moodle_auto_format">
<text>$$ \frac{7 x  + 8} {-2} = \frac{-12 x  + 2} {2} $$</text>
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<text></text>
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2
      </text>
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        <text>

        </text>
      </feedback>
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 <question type="shortanswer">
    <name><text>$$ \frac{8 x  - 5} {-3} = \frac{4 x  - 13} {-3} $$</text>
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<text>$$ \frac{8 x  - 5} {-3} = \frac{4 x  - 13} {-3} $$</text>
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<text></text>
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-2
      </text>
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        <text>

        </text>
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 <!-- resourceid-resourcedataid: 4407-3954 -->
 <question type="shortanswer">
    <name><text>$$ \frac{9 - 8 x } {3} = \frac{16 + 3 x } {-5} $$</text>
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    <questiontext format="moodle_auto_format">
<text>$$ \frac{9 - 8 x } {3} = \frac{16 + 3 x } {-5} $$</text>
    </questiontext>
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<text></text>
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      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- categoryid: 445 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Equacions amb denominadors (calculada)</text></category></question>
 
 <!-- resourceid-resourcedataid: 4408-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>-12</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>-8</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>-2</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n3</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
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           <number>1</number>
           <value>-3</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-4</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>-10</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4409-3906 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
 <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
 <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
 <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>2</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>d1</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
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        <dataset_item>
           <number>1</number>
           <value>2</value>
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        <dataset_item>
           <number>2</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>d2</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>d3</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>7</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n4</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>2</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>11</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n1</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>-3</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>-5</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>-15</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>4</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n2</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>-12</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>-13</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>-8</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>-2</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n3</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>-3</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-4</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>-10</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4410-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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 <!-- resourceid-resourcedataid: 4411-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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<text></text>
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    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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</question>
 
 <!-- resourceid-resourcedataid: 4412-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <image></image>
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<text></text>
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    <defaultgrade>1</defaultgrade>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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</question>
 
 <!-- resourceid-resourcedataid: 4413-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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<answer fraction="100">
    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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 <!-- resourceid-resourcedataid: 4414-3905 -->
 <question type="calculated">
    <name><text>equació amb den.calc</text>
</name>
    <questiontext format="moodle_auto_format">
<text><![CDATA[<p>Calcula la solució de l'equació següent:</p>
  <p>$$\frac{{n1}x}{{d1}}+\frac{{n2}x}{{d2}}=\frac{{n3}x}{{d3}}+{n4}$$</p>
  <p>(Recorda, POSA NOMES EL VALOR COM A RESPOSTA,  NO POSAR el x=__)</p>
  <p><strong>DONA EL RESULTAT AMB 2 DECIMALS.</strong></p>]]></text>
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    <text>(-{d1}*{d2}*{d3}*{n4})/(-{d2}*{d3}*{n1}-{d1}*{d3}*{n2}+{d1}*{d2}*{n3})</text>
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    <number_of_items>20</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>n3</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-15</text>
</minimum>
    <maximum><text>15</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>20</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>-3</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>-2</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>-4</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>-10</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>-5</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>-14</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>20</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- categoryid: 446 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Equacions amb paréntesis</text></category></question>
 
 <!-- resourceid-resourcedataid: 4415-3955 -->
 <question type="shortanswer">
    <name><text>$$ -12 \left( -22 + 2 x  \right)  + 2 \left( -22 + 2 x  \right)  = -5 \left( 2 x  - 20 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -12 \left( -22 + 2 x  \right)  + 2 \left( -22 + 2 x  \right)  = -5 \left( 2 x  - 20 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4416-3956 -->
 <question type="shortanswer">
    <name><text>$$ -2 \left( -2 x  + 24 \right)  = 4 \left( -21 + 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 \left( -2 x  + 24 \right)  = 4 \left( -21 + 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4417-3957 -->
 <question type="shortanswer">
    <name><text>$$ -2 \left( -3 x  - 17 \right)  + 9 \left( 11 x  + 20 \right)  = -2 \left( -7 x  - 16 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 \left( -3 x  - 17 \right)  + 9 \left( 11 x  + 20 \right)  = -2 \left( -7 x  - 16 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4418-3958 -->
 <question type="shortanswer">
    <name><text>$$ -2 \left( 17 + 6 x  \right)  = 2 \left( 3 x  + 19 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 \left( 17 + 6 x  \right)  = 2 \left( 3 x  + 19 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4419-3959 -->
 <question type="shortanswer">
    <name><text>$$ -2 \left( 2 + 5 x  \right)  + 2 \left( -24 x  - 19 \right)  = -8 \left( 3 + 5 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 \left( 2 + 5 x  \right)  + 2 \left( -24 x  - 19 \right)  = -8 \left( 3 + 5 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4420-3960 -->
 <question type="shortanswer">
    <name><text>$$ -2 \left( 20 - 2 x  \right)  + 2 \left( -16 + 2 x  \right)  = 8 \left( -20 + 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 \left( 20 - 2 x  \right)  + 2 \left( -16 + 2 x  \right)  = 8 \left( -20 + 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4421-3961 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( -11 + 4 x  \right)  = -3 \left( -15 + 5 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( -11 + 4 x  \right)  = -3 \left( -15 + 5 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4422-3962 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( -16 - 2 x  \right)  - 4 \left( 2 x  + 19 \right)  = 3 \left( -24 - 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( -16 - 2 x  \right)  - 4 \left( 2 x  + 19 \right)  = 3 \left( -24 - 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4423-3963 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 12 - 2 x  \right)  - 5 \left( -17 + 2 x  \right)  = 3 \left( -17 + 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 12 - 2 x  \right)  - 5 \left( -17 + 2 x  \right)  = 3 \left( -17 + 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4424-3964 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 15 + 2 x  \right)  = -3 \left( -2 x  - 21 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 15 + 2 x  \right)  = -3 \left( -2 x  - 21 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4425-3965 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 16 + 2 x  \right)  - 9 \left( -23 - 3 x  \right)  = -6 \left( 19 + 3 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 16 + 2 x  \right)  - 9 \left( -23 - 3 x  \right)  = -6 \left( 19 + 3 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4427-3967 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 18 - 2 x  \right)  - 3 \left( -15 + 2 x  \right)  = 3 \left( -2 x  + 9 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 18 - 2 x  \right)  - 3 \left( -15 + 2 x  \right)  = 3 \left( -2 x  + 9 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4426-3966 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 18 + 4 x  \right)  + 8 \left( -2 x  - 13 \right)  = -3 \left( -2 x  - 4 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 18 + 4 x  \right)  + 8 \left( -2 x  - 13 \right)  = -3 \left( -2 x  - 4 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4430-3970 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 2 x  - 16 \right)  + 2 \left( 13 - 2 x  \right)  = 2 \left( -2 x  + 10 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 2 x  - 16 \right)  + 2 \left( 13 - 2 x  \right)  = 2 \left( -2 x  + 10 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4428-3968 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 2 x  + 13 \right)  = 7 \left( 2 x  + 23 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 2 x  + 13 \right)  = 7 \left( 2 x  + 23 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4429-3969 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 2 x  + 24 \right)  - 2 \left( 17 + 2 x  \right)  = 2 \left( -2 x  - 23 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 2 x  + 24 \right)  - 2 \left( 17 + 2 x  \right)  = 2 \left( -2 x  - 23 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4431-3971 -->
 <question type="shortanswer">
    <name><text>$$ -3 \left( 22 - 5 x  \right)  = 3 \left( -17 + 4 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 \left( 22 - 5 x  \right)  = 3 \left( -17 + 4 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4432-3972 -->
 <question type="shortanswer">
    <name><text>$$ -4 \left( -19 - 2 x  \right)  - 2 \left( 13 + 2 x  \right)  = -3 \left( 2 x  + 10 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -4 \left( -19 - 2 x  \right)  - 2 \left( 13 + 2 x  \right)  = -3 \left( 2 x  + 10 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4433-3973 -->
 <question type="shortanswer">
    <name><text>$$ -4 \left( 16 + 2 x  \right)  - 5 \left( -2 x  - 20 \right)  = -6 \left( 2 x  + 15 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -4 \left( 16 + 2 x  \right)  - 5 \left( -2 x  - 20 \right)  = -6 \left( 2 x  + 15 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4434-3974 -->
 <question type="shortanswer">
    <name><text>$$ -4 \left( 7 - 5 x  \right)  - 2 \left( 3 - 11 x  \right)  = -2 \left( -5 x  + 1 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -4 \left( 7 - 5 x  \right)  - 2 \left( 3 - 11 x  \right)  = -2 \left( -5 x  + 1 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4435-3975 -->
 <question type="shortanswer">
    <name><text>$$ -5 \left( -3 x  - 13 \right)  = -2 \left( -2 x  - 5 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -5 \left( -3 x  - 13 \right)  = -2 \left( -2 x  - 5 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4436-3976 -->
 <question type="shortanswer">
    <name><text>$$ -5 \left( -4 x  - 21 \right)  = -3 \left( -13 - 3 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -5 \left( -4 x  - 21 \right)  = -3 \left( -13 - 3 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4437-3977 -->
 <question type="shortanswer">
    <name><text>$$ -6 \left( -12 + 2 x  \right)  = -2 \left( -15 + 3 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 \left( -12 + 2 x  \right)  = -2 \left( -15 + 3 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4438-3978 -->
 <question type="shortanswer">
    <name><text>$$ -6 \left( -24 - 2 x  \right)  = 4 \left( -2 x  - 19 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 \left( -24 - 2 x  \right)  = 4 \left( -2 x  - 19 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
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     <answer fraction="100">
      <text>
-11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4439-3979 -->
 <question type="shortanswer">
    <name><text>$$ -6 \left( -9 x  - 5 \right)  = 6 \left( 22 x  + 18 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 \left( -9 x  - 5 \right)  = 6 \left( 22 x  + 18 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
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     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4440-3980 -->
 <question type="shortanswer">
    <name><text>$$ -7 \left( -2 x  - 12 \right)  = -7 \left( 2 x  + 16 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -7 \left( -2 x  - 12 \right)  = -7 \left( 2 x  + 16 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
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     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4441-3981 -->
 <question type="shortanswer">
    <name><text>$$ -7 \left( -24 + 2 x  \right)  = 7 \left( -20 + 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -7 \left( -24 + 2 x  \right)  = 7 \left( -20 + 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
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     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4442-3982 -->
 <question type="shortanswer">
    <name><text>$$ 11 \left( 18 - 2 x  \right)  + 7 \left( 22 - 3 x  \right)  = 4 \left( -2 x  + 18 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 11 \left( 18 - 2 x  \right)  + 7 \left( 22 - 3 x  \right)  = 4 \left( -2 x  + 18 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4443-3983 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( -2 x  + 21 \right)  + 2 \left( 3 x  - 19 \right)  = -9 \left( -16 + 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( -2 x  + 21 \right)  + 2 \left( 3 x  - 19 \right)  = -9 \left( -16 + 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4444-3984 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( -20 - 2 x  \right)  - 11 \left( -2 x  - 22 \right)  = -2 \left( -17 - 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( -20 - 2 x  \right)  - 11 \left( -2 x  - 22 \right)  = -2 \left( -17 - 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4445-3985 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( -7 + 6 x  \right)  = -11 \left( 6 x  - 20 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( -7 + 6 x  \right)  = -11 \left( 6 x  - 20 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4446-3986 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( -8 + 2 x  \right)  = -8 \left( 17 - 2 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( -8 + 2 x  \right)  = -8 \left( 17 - 2 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4447-3987 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( -8 x  + 21 \right)  = -2 \left( 10 x  - 25 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( -8 x  + 21 \right)  = -2 \left( 10 x  - 25 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4448-3988 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( 14 - 2 x  \right)  = 2 \left( -3 x  + 22 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( 14 - 2 x  \right)  = 2 \left( -3 x  + 22 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4449-3989 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( 15 - 2 x  \right)  = 9 \left( -2 x  + 22 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( 15 - 2 x  \right)  = 9 \left( -2 x  + 22 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4450-3990 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( 18 + 10 x  \right)  = -2 \left( -5 x  - 8 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( 18 + 10 x  \right)  = -2 \left( -5 x  - 8 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4451-3991 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( 2 x  + 13 \right)  = 11 \left( 2 x  + 22 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( 2 x  + 13 \right)  = 11 \left( 2 x  + 22 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4452-3992 -->
 <question type="shortanswer">
    <name><text>$$ 3 \left( 10 - 4 x  \right)  - 4 \left( 4 x  - 17 \right)  = 2 \left( 7 x  - 14 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 \left( 10 - 4 x  \right)  - 4 \left( 4 x  - 17 \right)  = 2 \left( 7 x  - 14 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4453-3993 -->
 <question type="shortanswer">
    <name><text>$$ 3 \left( 12 - 5 x  \right)  - 2 \left( -4 x  - 1 \right)  = 3 \left( -6 x  + 20 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 \left( 12 - 5 x  \right)  - 2 \left( -4 x  - 1 \right)  = 3 \left( -6 x  + 20 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4454-3994 -->
 <question type="shortanswer">
    <name><text>$$ 3 \left( 18 - 25 x  \right)  = 3 \left( -17 + 10 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 \left( 18 - 25 x  \right)  = 3 \left( -17 + 10 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4455-3995 -->
 <question type="shortanswer">
    <name><text>$$ 4 \left( 14 - 3 x  \right)  = -4 \left( -2 x  + 16 \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 \left( 14 - 3 x  \right)  = -4 \left( -2 x  + 16 \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4456-3996 -->
 <question type="shortanswer">
    <name><text>$$ 4 \left( 25 + 5 x  \right)  - 4 \left( -6 x  - 20 \right)  = -2 \left( 14 + 4 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 \left( 25 + 5 x  \right)  - 4 \left( -6 x  - 20 \right)  = -2 \left( 14 + 4 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4457-3997 -->
 <question type="shortanswer">
    <name><text>$$ 5 \left( 2 x  + 11 \right)  = -5 \left( -14 - 3 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 5 \left( 2 x  + 11 \right)  = -5 \left( -14 - 3 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4458-3998 -->
 <question type="shortanswer">
    <name><text>$$ 7 \left( -2 x  - 19 \right)  = -7 \left( -21 - 3 x  \right)  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 7 \left( -2 x  - 19 \right)  = -7 \left( -21 - 3 x  \right)  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- categoryid: 447 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Equacions del tipus (3x+1)//15=2</text></category></question>
 
 <!-- resourceid-resourcedataid: 4460-4000 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-11 - 5 x } {-22} = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-11 - 5 x } {-22} = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4459-3999 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-11 + 3 x } {5} = 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-11 + 3 x } {5} = 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
27
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4461-4001 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-12 + 28 x } {-8} = -9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-12 + 28 x } {-8} = -9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4462-4002 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-12 x  + 8} {-2} = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-12 x  + 8} {-2} = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4463-4003 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-13 + 2 x } {3} = -23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-13 + 2 x } {3} = -23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-28
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4464-4004 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-14 + 2 x } {2} = 41 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-14 + 2 x } {2} = 41 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
48
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4465-4005 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-16 - 3 x } {-2} = -22 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-16 - 3 x } {-2} = -22 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-20
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4466-4006 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-18 - 3 x } {-2} = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-18 - 3 x } {-2} = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
26
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4467-4007 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-19 x  - 8} {-29} = -3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-19 x  - 8} {-29} = -3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4474-4014 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 15} {5} = -19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 15} {5} = -19 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
40
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4475-4015 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 29} {3} = -23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 29} {3} = -23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
20
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4476-4016 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 42} {-2} = -26 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 42} {-2} = -26 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-47
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4477-4017 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 52} {4} = 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 52} {4} = 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-44
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4478-4018 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  - 6} {-2} = -45 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  - 6} {-2} = -45 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-48
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4468-4008 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 20} {3} = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 20} {3} = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-38
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4469-4009 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 30} {-2} = -50 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 30} {-2} = -50 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-35
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4470-4010 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 34} {-2} = -39 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 34} {-2} = -39 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-22
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4471-4011 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 54} {-4} = -21 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 54} {-4} = -21 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-15
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4472-4012 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 70} {5} = 18 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 70} {5} = 18 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4473-4013 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-2 x  + 8} {2} = 50 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-2 x  + 8} {2} = 50 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-46
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4479-4019 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-22 + 3 x } {-4} = 25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-22 + 3 x } {-4} = 25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-26
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4480-4020 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-24 + 12 x } {8} = -12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-24 + 12 x } {8} = -12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4481-4021 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-28 + 2 x } {-2} = -29 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-28 + 2 x } {-2} = -29 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
43
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4482-4022 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-29 x  + 2} {-4} = 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-29 x  + 2} {-4} = 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4484-4024 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  - 1} {8} = 7 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  - 1} {8} = 7 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-19
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4485-4025 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  - 24} {-5} = -15 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  - 24} {-5} = -15 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-33
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4486-4026 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  - 29} {2} = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  - 29} {2} = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-31
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4483-4023 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-3 x  + 72} {3} = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-3 x  + 72} {3} = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4487-4027 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-30 - 3 x } {-12} = -5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-30 - 3 x } {-12} = -5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-30
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4488-4028 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-34 - 2 x } {2} = 23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-34 - 2 x } {2} = 23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-40
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4489-4029 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-34 - 4 x } {2} = 31 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-34 - 4 x } {2} = 31 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-24
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4490-4030 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-35 - 2 x } {-31} = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-35 - 2 x } {-31} = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
29
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4492-4032 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-36 - 2 x } {-2} = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-36 - 2 x } {-2} = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
30
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4491-4031 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-36 + 4 x } {2} = -42 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-36 + 4 x } {2} = -42 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4494-4034 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-4 x  - 12} {2} = -30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-4 x  - 12} {2} = -30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4493-4033 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-4 x  + 36} {-2} = -50 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-4 x  + 36} {-2} = -50 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-16
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4495-4035 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-48 + 4 x } {2} = -50 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-48 + 4 x } {2} = -50 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-13
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4496-4036 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-5 x  + 39} {8} = -7 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-5 x  + 39} {8} = -7 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
19
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4497-4037 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-7 x  - 2} {-4} = -24 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-7 x  - 2} {-4} = -24 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-14
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4498-4038 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-9 + 2 x } {-3} = 31 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-9 + 2 x } {-3} = 31 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-42
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4499-4039 -->
 <question type="shortanswer">
    <name><text>$$ \frac{-92 - 4 x } {2} = -38 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{-92 - 4 x } {2} = -38 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4500-4040 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10 + 20 x } {-3} = -30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10 + 20 x } {-3} = -30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4501-4041 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10 + 5 x } {-10} = -10 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10 + 5 x } {-10} = -10 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
18
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4502-4042 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10 x  - 32} {-3} = -6 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10 x  - 32} {-3} = -6 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4503-4043 -->
 <question type="shortanswer">
    <name><text>$$ \frac{100 + 2 x } {2} = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{100 + 2 x } {2} = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-18
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4504-4044 -->
 <question type="shortanswer">
    <name><text>$$ \frac{11 x  - 16} {-9} = -8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{11 x  - 16} {-9} = -8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4505-4045 -->
 <question type="shortanswer">
    <name><text>$$ \frac{12 - 2 x } {2} = -30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{12 - 2 x } {2} = -30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
36
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4506-4046 -->
 <question type="shortanswer">
    <name><text>$$ \frac{18 - 2 x } {2} = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{18 - 2 x } {2} = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-39
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4507-4047 -->
 <question type="shortanswer">
    <name><text>$$ \frac{19 - 7 x } {12} = -6 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{19 - 7 x } {12} = -6 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
13
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4509-4049 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 - 2 x } {-4} = 22 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 - 2 x } {-4} = 22 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
45
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4508-4048 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 + 2 x } {-2} = -45 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 + 2 x } {-2} = -45 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
44
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4518-4058 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 1} {5} = -15 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 1} {5} = -15 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-37
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4517-4057 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 14} {-5} = -14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 14} {-5} = -14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
42
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4520-4060 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 2} {-2} = 46 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 2} {-2} = 46 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-45
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4519-4059 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 26} {-2} = 47 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 26} {-2} = 47 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-34
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4522-4062 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 3} {5} = -17 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 3} {5} = -17 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-41
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4521-4061 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 31} {5} = 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 31} {5} = 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
38
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4523-4063 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 4} {2} = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 4} {2} = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
50
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4524-4064 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 4} {3} = 30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 4} {3} = 30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
47
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4525-4065 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  - 80} {2} = -6 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  - 80} {2} = -6 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
34
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4510-4050 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 1} {-3} = -25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 1} {-3} = -25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
37
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4513-4053 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 2} {-2} = -25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 2} {-2} = -25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
24
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4511-4051 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 20} {-2} = -41 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 20} {-2} = -41 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
31
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4512-4052 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 20} {8} = -10 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 20} {8} = -10 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-50
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4514-4054 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 38} {2} = -30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 38} {2} = -30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-49
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4515-4055 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 6} {2} = 49 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 6} {2} = 49 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
46
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4516-4056 -->
 <question type="shortanswer">
    <name><text>$$ \frac{2 x  + 89} {7} = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{2 x  + 89} {7} = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-27
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4526-4066 -->
 <question type="shortanswer">
    <name><text>$$ \frac{21 - 3 x } {-4} = -21 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{21 - 3 x } {-4} = -21 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-21
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4527-4067 -->
 <question type="shortanswer">
    <name><text>$$ \frac{22 + 2 x } {-3} = -26 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{22 + 2 x } {-3} = -26 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
28
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4528-4068 -->
 <question type="shortanswer">
    <name><text>$$ \frac{23 + 2 x } {3} = 31 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{23 + 2 x } {3} = 31 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
35
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4529-4069 -->
 <question type="shortanswer">
    <name><text>$$ \frac{24 x  - 8} {2} = -40 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{24 x  - 8} {2} = -40 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
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     <answer fraction="100">
      <text>
-3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4530-4070 -->
 <question type="shortanswer">
    <name><text>$$ \frac{26 - 2 x } {2} = 49 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{26 - 2 x } {2} = 49 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
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     <answer fraction="100">
      <text>
-36
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4531-4071 -->
 <question type="shortanswer">
    <name><text>$$ \frac{28 + 36 x } {4} = 16 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{28 + 36 x } {4} = 16 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
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    <hidden>0</hidden>
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     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4534-4074 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 x  - 24} {-3} = -17 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{3 x  - 24} {-3} = -17 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
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    <hidden>0</hidden>
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     <answer fraction="100">
      <text>
25
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4535-4075 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 x  - 93} {3} = -16 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{3 x  - 93} {3} = -16 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
15
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4532-4072 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 x  + 4} {4} = 25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{3 x  + 4} {4} = 25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
32
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4533-4073 -->
 <question type="shortanswer">
    <name><text>$$ \frac{3 x  + 9} {4} = 15 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{3 x  + 9} {4} = 15 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
17
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4536-4076 -->
 <question type="shortanswer">
    <name><text>$$ \frac{4 - 3 x } {2} = 50 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{4 - 3 x } {2} = 50 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-32
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4539-4079 -->
 <question type="shortanswer">
    <name><text>$$ \frac{4 x  - 76} {4} = -5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{4 x  - 76} {4} = -5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
14
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4537-4077 -->
 <question type="shortanswer">
    <name><text>$$ \frac{4 x  + 12} {-2} = -48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{4 x  + 12} {-2} = -48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
21
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4538-4078 -->
 <question type="shortanswer">
    <name><text>$$ \frac{4 x  + 13} {-3} = 29 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{4 x  + 13} {-3} = 29 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-25
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4540-4080 -->
 <question type="shortanswer">
    <name><text>$$ \frac{40 - 2 x } {-2} = -49 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{40 - 2 x } {-2} = -49 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
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    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-29
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4541-4081 -->
 <question type="shortanswer">
    <name><text>$$ \frac{40 x  - 16} {3} = -32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{40 x  - 16} {3} = -32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4542-4082 -->
 <question type="shortanswer">
    <name><text>$$ \frac{41 + 2 x } {-3} = 15 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{41 + 2 x } {-3} = 15 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-43
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4543-4083 -->
 <question type="shortanswer">
    <name><text>$$ \frac{44 - 6 x } {7} = 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{44 - 6 x } {7} = 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4544-4084 -->
 <question type="shortanswer">
    <name><text>$$ \frac{5 - 3 x } {-2} = 47 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{5 - 3 x } {-2} = 47 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
33
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4545-4085 -->
 <question type="shortanswer">
    <name><text>$$ \frac{57 - 3 x } {-3} = -26 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{57 - 3 x } {-3} = -26 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4546-4086 -->
 <question type="shortanswer">
    <name><text>$$ \frac{59 - 3 x } {-2} = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{59 - 3 x } {-2} = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
23
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4548-4088 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 - 2 x } {2} = -46 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 - 2 x } {2} = -46 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
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    <usecase>0</usecase>
     <answer fraction="100">
      <text>
49
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4549-4089 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 - 4 x } {2} = 37 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 - 4 x } {2} = 37 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-17
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4547-4087 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 + 2 x } {-2} = -42 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 + 2 x } {-2} = -42 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
39
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4551-4091 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 x  - 18} {-2} = 42 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 x  - 18} {-2} = 42 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4552-4092 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 x  - 30} {-2} = -33 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 x  - 30} {-2} = -33 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
16
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4550-4090 -->
 <question type="shortanswer">
    <name><text>$$ \frac{6 x  + 14} {2} = 34 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{6 x  + 14} {2} = 34 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4553-4093 -->
 <question type="shortanswer">
    <name><text>$$ \frac{77 + 4 x } {-3} = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{77 + 4 x } {-3} = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-23
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4554-4094 -->
 <question type="shortanswer">
    <name><text>$$ \frac{8 + 2 x } {2} = 45 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{8 + 2 x } {2} = 45 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
41
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4555-4095 -->
 <question type="shortanswer">
    <name><text>$$ \frac{8 + 4 x } {-2} = -48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{8 + 4 x } {-2} = -48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
22
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4556-4096 -->
 <question type="shortanswer">
    <name><text>$$ \frac{87 - 13 x } {-4} = -25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{87 - 13 x } {-4} = -25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4557-4097 -->
 <question type="shortanswer">
    <name><text>$$ \frac{88 - 2 x } {2} = 34 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{88 - 2 x } {2} = 34 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4558-4098 -->
 <question type="shortanswer">
    <name><text>$$ \frac{9 x  + 2} {-13} = -5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{9 x  + 2} {-13} = -5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- categoryid: 448 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Equacions del tipus 2x+1=3x+5</text></category></question>
 
 <!-- resourceid-resourcedataid: 4559-4099 -->
 <question type="shortanswer">
    <name><text>$$ -11 + 3 x  = -2 x  + 19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -11 + 3 x  = -2 x  + 19 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4560-4100 -->
 <question type="shortanswer">
    <name><text>$$ -15 x  + 6 = -14 x  + 11 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -15 x  + 6 = -14 x  + 11 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4561-4101 -->
 <question type="shortanswer">
    <name><text>$$ -16 x  + 62 = 42 - 11 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -16 x  + 62 = 42 - 11 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4569-4109 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 27 = 2 x  + 77 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 27 = 2 x  + 77 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-26
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4570-4110 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 27 = 89 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 27 = 89 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-29
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4571-4111 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 63 = 2 x  + 85 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 63 = 2 x  + 85 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-37
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4572-4112 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 64 = 92 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 64 = 92 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-39
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4573-4113 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 65 = 2 x  + 99 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 65 = 2 x  + 99 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-41
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4574-4114 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 75 = 53 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 75 = 53 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-32
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4575-4115 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 78 = 2 x  + 62 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 78 = 2 x  + 62 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-35
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4576-4116 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 80 = 2 x  + 88 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 80 = 2 x  + 88 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-42
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4577-4117 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  - 89 = 2 x  + 71 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  - 89 = 2 x  + 71 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-40
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4562-4102 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 2 = -3 x  - 31 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 2 = -3 x  - 31 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-33
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4563-4103 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 54 = 2 x  - 82 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 54 = 2 x  - 82 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
34
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4564-4104 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 69 = -99 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 69 = -99 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
42
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4565-4105 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 77 = -40 + 7 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 77 = -40 + 7 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
13
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4566-4106 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 80 = 2 x  - 100 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 80 = 2 x  - 100 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
45
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4567-4107 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 93 = 2 x  - 99 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 93 = 2 x  - 99 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
48
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4568-4108 -->
 <question type="shortanswer">
    <name><text>$$ -2 x  + 97 = 2 x  - 51 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -2 x  + 97 = 2 x  - 51 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
37
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4578-4118 -->
 <question type="shortanswer">
    <name><text>$$ -20 x  - 50 = 12 x  + 46 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -20 x  - 50 = 12 x  + 46 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4579-4119 -->
 <question type="shortanswer">
    <name><text>$$ -24 x  + 58 = -26 x  + 64 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -24 x  + 58 = -26 x  + 64 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4580-4120 -->
 <question type="shortanswer">
    <name><text>$$ -26 + 47 x  = 26 + 21 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -26 + 47 x  = 26 + 21 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4581-4121 -->
 <question type="shortanswer">
    <name><text>$$ -3 + 3 x  = 2 x  + 30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 + 3 x  = 2 x  + 30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
33
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4583-4123 -->
 <question type="shortanswer">
    <name><text>$$ -3 x  - 85 = 34 + 4 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 x  - 85 = 34 + 4 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-17
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4582-4122 -->
 <question type="shortanswer">
    <name><text>$$ -3 x  + 43 = -77 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -3 x  + 43 = -77 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
24
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4584-4124 -->
 <question type="shortanswer">
    <name><text>$$ -31 - 3 x  = -42 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -31 - 3 x  = -42 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4585-4125 -->
 <question type="shortanswer">
    <name><text>$$ -39 - 3 x  = 51 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -39 - 3 x  = 51 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-18
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4587-4127 -->
 <question type="shortanswer">
    <name><text>$$ -4 x  - 13 = 3 x  + 78 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -4 x  - 13 = 3 x  + 78 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-13
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4586-4126 -->
 <question type="shortanswer">
    <name><text>$$ -4 x  + 4 = -6 x  + 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -4 x  + 4 = -6 x  + 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4588-4128 -->
 <question type="shortanswer">
    <name><text>$$ -46 - 2 x  = -3 x  - 23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -46 - 2 x  = -3 x  - 23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
23
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4589-4129 -->
 <question type="shortanswer">
    <name><text>$$ -49 - 2 x  = 2 x  + 87 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -49 - 2 x  = 2 x  + 87 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-34
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4590-4130 -->
 <question type="shortanswer">
    <name><text>$$ -5 x  + 89 = -39 + 11 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -5 x  + 89 = -39 + 11 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4591-4131 -->
 <question type="shortanswer">
    <name><text>$$ -52 - 2 x  = 2 x  + 92 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -52 - 2 x  = 2 x  + 92 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-36
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4593-4133 -->
 <question type="shortanswer">
    <name><text>$$ -6 - 4 x  = -96 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 - 4 x  = -96 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
15
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4592-4132 -->
 <question type="shortanswer">
    <name><text>$$ -6 + 3 x  = 2 x  + 25 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 + 3 x  = 2 x  + 25 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
31
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4594-4134 -->
 <question type="shortanswer">
    <name><text>$$ -6 x  - 47 = -5 x  - 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -6 x  - 47 = -5 x  - 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-15
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4595-4135 -->
 <question type="shortanswer">
    <name><text>$$ -63 - 5 x  = -4 x  - 44 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -63 - 5 x  = -4 x  - 44 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-19
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4596-4136 -->
 <question type="shortanswer">
    <name><text>$$ -7 - 11 x  = 85 + 12 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -7 - 11 x  = 85 + 12 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4597-4137 -->
 <question type="shortanswer">
    <name><text>$$ -7 x  - 41 = -8 x  - 52 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -7 x  - 41 = -8 x  - 52 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4598-4138 -->
 <question type="shortanswer">
    <name><text>$$ -71 - 3 x  = 2 x  + 84 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -71 - 3 x  = 2 x  + 84 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-31
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4599-4139 -->
 <question type="shortanswer">
    <name><text>$$ -75 + 5 x  = -35 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -75 + 5 x  = -35 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
20
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4600-4140 -->
 <question type="shortanswer">
    <name><text>$$ -78 + 5 x  = 66 - 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -78 + 5 x  = 66 - 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
18
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4601-4141 -->
 <question type="shortanswer">
    <name><text>$$ -86 - 2 x  = -6 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -86 - 2 x  = -6 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-20
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4602-4142 -->
 <question type="shortanswer">
    <name><text>$$ -92 + 2 x  = -2 x  + 60 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ -92 + 2 x  = -2 x  + 60 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
38
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4603-4143 -->
 <question type="shortanswer">
    <name><text>$$ 1 + 3 x  = -24 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 1 + 3 x  = -24 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-25
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4604-4144 -->
 <question type="shortanswer">
    <name><text>$$ 11 x  - 51 = -11 x  - 95 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 11 x  - 51 = -11 x  - 95 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4609-4149 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 100 = -2 x  + 88 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 100 = -2 x  + 88 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
47
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4610-4150 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 56 = -88 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 56 = -88 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
32
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4611-4151 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 57 = -86 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 57 = -86 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
29
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4612-4152 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 78 = -2 x  + 98 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 78 = -2 x  + 98 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
44
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4613-4153 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 92 = 64 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 92 = 64 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
39
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4614-4154 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  - 98 = -2 x  + 66 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  - 98 = -2 x  + 66 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
41
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4605-4145 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  + 18 = 5 x  - 33 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  + 18 = 5 x  - 33 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
17
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4606-4146 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  + 32 = -2 x  - 60 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  + 32 = -2 x  - 60 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-23
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4607-4147 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  + 4 = 5 x  - 53 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  + 4 = 5 x  - 53 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
19
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4608-4148 -->
 <question type="shortanswer">
    <name><text>$$ 2 x  + 88 = -2 x  - 84 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 x  + 88 = -2 x  - 84 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-43
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4615-4155 -->
 <question type="shortanswer">
    <name><text>$$ 25 + 2 x  = 3 x  + 52 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 25 + 2 x  = 3 x  + 52 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-27
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4616-4156 -->
 <question type="shortanswer">
    <name><text>$$ 28 + 6 x  = 52 + 9 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 28 + 6 x  = 52 + 9 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4617-4157 -->
 <question type="shortanswer">
    <name><text>$$ 3 + 69 x  = -16 + 50 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 + 69 x  = -16 + 50 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4621-4161 -->
 <question type="shortanswer">
    <name><text>$$ 3 x  - 74 = -2 - 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 x  - 74 = -2 - 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4618-4158 -->
 <question type="shortanswer">
    <name><text>$$ 3 x  + 4 = 2 x  - 20 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 x  + 4 = 2 x  - 20 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-24
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4619-4159 -->
 <question type="shortanswer">
    <name><text>$$ 3 x  + 58 = -4 x  - 96 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 x  + 58 = -4 x  - 96 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-22
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4620-4160 -->
 <question type="shortanswer">
    <name><text>$$ 3 x  + 96 = 66 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 x  + 96 = 66 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-30
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4622-4162 -->
 <question type="shortanswer">
    <name><text>$$ 32 - 2 x  = 4 - 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 32 - 2 x  = 4 - 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-28
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4623-4163 -->
 <question type="shortanswer">
    <name><text>$$ 33 - 4 x  = -6 x  + 65 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 33 - 4 x  = -6 x  + 65 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
16
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4624-4164 -->
 <question type="shortanswer">
    <name><text>$$ 37 - 7 x  = -73 + 4 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 37 - 7 x  = -73 + 4 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4625-4165 -->
 <question type="shortanswer">
    <name><text>$$ 38 x  - 17 = -61 x  + 82 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 38 x  - 17 = -61 x  + 82 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4627-4167 -->
 <question type="shortanswer">
    <name><text>$$ 4 x  - 10 = -31 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 x  - 10 = -31 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-21
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4628-4168 -->
 <question type="shortanswer">
    <name><text>$$ 4 x  - 18 = 7 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 x  - 18 = 7 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
25
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4629-4169 -->
 <question type="shortanswer">
    <name><text>$$ 4 x  - 46 = -2 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 x  - 46 = -2 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
22
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4630-4170 -->
 <question type="shortanswer">
    <name><text>$$ 4 x  - 9 = 3 x  + 12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 x  - 9 = 3 x  + 12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
21
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4626-4166 -->
 <question type="shortanswer">
    <name><text>$$ 4 x  + 11 = 3 x  - 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 x  + 11 = 3 x  - 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-14
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4631-4171 -->
 <question type="shortanswer">
    <name><text>$$ 48 - 2 x  = 2 x  - 60 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 48 - 2 x  = 2 x  - 60 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
27
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4632-4172 -->
 <question type="shortanswer">
    <name><text>$$ 5 x  - 30 = 24 + 11 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 5 x  - 30 = 24 + 11 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4633-4173 -->
 <question type="shortanswer">
    <name><text>$$ 57 - 2 x  = 2 x  - 87 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 57 - 2 x  = 2 x  - 87 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
36
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4634-4174 -->
 <question type="shortanswer">
    <name><text>$$ 6 x  - 2 = -34 + 4 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 6 x  - 2 = -34 + 4 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-16
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4635-4175 -->
 <question type="shortanswer">
    <name><text>$$ 64 + 3 x  = -10 x  - 66 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 64 + 3 x  = -10 x  - 66 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4636-4176 -->
 <question type="shortanswer">
    <name><text>$$ 69 - 2 x  = -71 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 69 - 2 x  = -71 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
35
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4637-4177 -->
 <question type="shortanswer">
    <name><text>$$ 7 + 3 x  = -21 + 5 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 7 + 3 x  = -21 + 5 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
14
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4638-4178 -->
 <question type="shortanswer">
    <name><text>$$ 77 + 8 x  = 65 + 7 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 77 + 8 x  = 65 + 7 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4639-4179 -->
 <question type="shortanswer">
    <name><text>$$ 8 + 3 x  = 34 + 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 8 + 3 x  = 34 + 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
26
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4640-4180 -->
 <question type="shortanswer">
    <name><text>$$ 8 x  - 50 = 40 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 8 x  - 50 = 40 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4641-4181 -->
 <question type="shortanswer">
    <name><text>$$ 8 x  - 51 = -93 + 14 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 8 x  - 51 = -93 + 14 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4642-4182 -->
 <question type="shortanswer">
    <name><text>$$ 89 - 2 x  = -61 + 3 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 89 - 2 x  = -61 + 3 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
30
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4643-4183 -->
 <question type="shortanswer">
    <name><text>$$ 89 - 2 x  = 2 x  - 23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 89 - 2 x  = 2 x  - 23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
28
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4644-4184 -->
 <question type="shortanswer">
    <name><text>$$ 9 x  - 9 = 33 + 16 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 9 x  - 9 = 33 + 16 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4645-4185 -->
 <question type="shortanswer">
    <name><text>$$ 92 + 2 x  = -2 x  - 88 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 92 + 2 x  = -2 x  - 88 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-45
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4646-4186 -->
 <question type="shortanswer">
    <name><text>$$ 93 - 2 x  = 2 x  - 67 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 93 - 2 x  = 2 x  - 67 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
40
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4647-4187 -->
 <question type="shortanswer">
    <name><text>$$ 95 + 10 x  = 74 + 7 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 95 + 10 x  = 74 + 7 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4648-4188 -->
 <question type="shortanswer">
    <name><text>$$ 96 + 2 x  = -80 - 2 x  $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 96 + 2 x  = -80 - 2 x  $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
-44
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- categoryid: 449 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Equacions de primer grau/Problemes amb equacions de 1r grau</text></category></question>
 
 <!-- resourceid-resourcedataid: 4649-4189 -->
 <question type="calculated">
    <name><text>angles d'un triangle</text>
</name>
    <questiontext format="html">
<text><![CDATA[<span lang="CA">
 <p>L'angle més gran d'un triangle és el doble que el mitjà i aquest mesura {g} graus més que l'angle més petit. Quant mesura l'angle <strong>més gran</strong>?</p></span>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>(180-{g})/2</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>2</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<units>
  <unit>
    <multiplier>1</multiplier>
    <unit_name>graus</unit_name>
  </unit>
  <unit>
    <multiplier>1</multiplier>
    <unit_name>º</unit_name>
  </unit>
</units>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>g</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>10</text>
</minimum>
    <maximum><text>40</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>30</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>20</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>22</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>21</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>25</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>35</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>28</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>26</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>38</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>34</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>25</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>33</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>29</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>19</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>27</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>20</value>
        </dataset_item>
        <dataset_item>
           <number>21</number>
           <value>20</value>
        </dataset_item>
        <dataset_item>
           <number>22</number>
           <value>27</value>
        </dataset_item>
        <dataset_item>
           <number>23</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>24</number>
           <value>29</value>
        </dataset_item>
        <dataset_item>
           <number>25</number>
           <value>25</value>
        </dataset_item>
        <dataset_item>
           <number>26</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>27</number>
           <value>34</value>
        </dataset_item>
        <dataset_item>
           <number>28</number>
           <value>38</value>
        </dataset_item>
        <dataset_item>
           <number>29</number>
           <value>31</value>
        </dataset_item>
        <dataset_item>
           <number>30</number>
           <value>11</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>30</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4650-4190 -->
 <question type="calculated">
    <name><text>Barreja vi rosat</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>En una bodega, es vol fer vi rosat mesclant <span lang="CA">vi negre de {n} €/litre amb vi blanc de {b} euros/litre i obtenim {l} litres de vi de {r} euros el litre, quants litres <strong>de vi negre</strong> hem utilitzat?</span></p>
 <p><span lang="CA">(Utilitza 2 decimals pel resultat)</span></p>]]></text>
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        <dataset_item>
           <number>41</number>
           <value>5.6</value>
        </dataset_item>
        <dataset_item>
           <number>42</number>
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        <dataset_item>
           <number>43</number>
           <value>4.4</value>
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        <dataset_item>
           <number>44</number>
           <value>4.0</value>
        </dataset_item>
        <dataset_item>
           <number>45</number>
           <value>4.6</value>
        </dataset_item>
        <dataset_item>
           <number>46</number>
           <value>5.4</value>
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        <dataset_item>
           <number>47</number>
           <value>5.1</value>
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        <dataset_item>
           <number>48</number>
           <value>4.9</value>
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           <number>49</number>
           <value>5.5</value>
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           <value>5.4</value>
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    <number_of_items>50</number_of_items>
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</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4651-4191 -->
 <question type="calculated">
    <name><text>Llaunes</text>
</name>
    <questiontext format="html">
<text><![CDATA[<span lang="CA">
 <p>Hem comprat begudes per a {a} amics, entre coca-coles i fantes. Quantes coca-coles hem comprat si sabem que en total ens hem gastat {t} euros, que el preu d'una coca-cola és de {c} euros i que el d'una fanta és de {f} euros?</p></span>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
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    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>({t}-{f}*{a})/({c}-{f})</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>2</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
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</status>
    <name><text>t</text>
</name>
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    <distribution><text>uniform</text>
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    <minimum><text>20</text>
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    <maximum><text>40</text>
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    <decimals><text>2</text>
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    <itemcount>10</itemcount>
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           <value>21.55</value>
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        <dataset_item>
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           <value>19.96</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>19.89</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>23.12</value>
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        <dataset_item>
           <number>5</number>
           <value>10.44</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>15.12</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>16.04</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>31.23</value>
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        <dataset_item>
           <number>9</number>
           <value>14.24</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>20.02</value>
        </dataset_item>
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    <number_of_items>10</number_of_items>
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    <status><text>private</text>
</status>
    <name><text>f</text>
</name>
    <type>calculated</type>
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    <minimum><text>0.5</text>
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    <maximum><text>2</text>
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           <value>0.9</value>
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        <dataset_item>
           <number>2</number>
           <value>0.83</value>
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        <dataset_item>
           <number>3</number>
           <value>1.56</value>
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        <dataset_item>
           <number>4</number>
           <value>1.91</value>
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        <dataset_item>
           <number>5</number>
           <value>1.25</value>
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        <dataset_item>
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        <dataset_item>
           <number>7</number>
           <value>0.54</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>1.71</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>1.14</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1.42</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>10</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>a</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>10</text>
</minimum>
    <maximum><text>20</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>10</itemcount>
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           <number>1</number>
           <value>23</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>20</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>16</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>11</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>10</number_of_items>
</dataset_definition>
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</status>
    <name><text>c</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>0.5</text>
</minimum>
    <maximum><text>2</text>
</maximum>
    <decimals><text>2</text>
</decimals>
    <itemcount>10</itemcount>
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           <number>1</number>
           <value>0.95</value>
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           <number>2</number>
           <value>1.25</value>
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        <dataset_item>
           <number>3</number>
           <value>1.95</value>
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           <value>0.67</value>
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           <number>5</number>
           <value>0.68</value>
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        <dataset_item>
           <number>6</number>
           <value>1.11</value>
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           <number>7</number>
           <value>1.55</value>
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        <dataset_item>
           <number>8</number>
           <value>1.74</value>
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        <dataset_item>
           <number>9</number>
           <value>1.85</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>1.86</value>
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    <number_of_items>10</number_of_items>
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</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4652-4192 -->
 <question type="calculated">
    <name><text>trobada entre 2 ciutats</text>
</name>
    <questiontext format="html">
<text><![CDATA[<span lang="CA">
 <p>Un vianant surt d'una ciutat A cap a una altra ciutat B, que dista {D} km del punt A, a una velocitat de {v1} km/h. En el mateix moment un altre vianant surt de B cap a A a una velocitat de {v2} km/h. A quina distància del punt A coincidiran tots dos vianants?</p></span>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
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    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>({v1}*{D})/({v1}+{v2})</text>
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    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>2</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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    <multiplier>1</multiplier>
    <unit_name>km</unit_name>
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</units>
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<dataset_definition>
    <status><text>private</text>
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    <name><text>v1</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>1.0</text>
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    <maximum><text>20</text>
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    <decimals><text>0</text>
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    <itemcount>50</itemcount>
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           <value>6</value>
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        <dataset_item>
           <number>2</number>
           <value>15</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>12</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>11</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>10</value>
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        <dataset_item>
           <number>11</number>
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        </dataset_item>
        <dataset_item>
           <number>12</number>
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        <dataset_item>
           <number>13</number>
           <value>1</value>
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           <number>14</number>
           <value>15</value>
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        <dataset_item>
           <number>15</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
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        <dataset_item>
           <number>21</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>22</number>
           <value>18</value>
        </dataset_item>
        <dataset_item>
           <number>23</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>24</number>
           <value>18</value>
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        <dataset_item>
           <number>25</number>
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        <dataset_item>
           <number>26</number>
           <value>18</value>
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        <dataset_item>
           <number>27</number>
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        <dataset_item>
           <number>28</number>
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           <number>29</number>
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           <number>30</number>
           <value>14</value>
        </dataset_item>
        <dataset_item>
           <number>31</number>
           <value>2</value>
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        <dataset_item>
           <number>32</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>33</number>
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           <number>37</number>
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           <number>38</number>
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           <number>44</number>
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           <number>47</number>
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           <number>48</number>
           <value>10</value>
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    </dataset_items>
    <number_of_items>50</number_of_items>
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<dataset_definition>
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    <type>calculated</type>
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           <number>8</number>
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           <number>13</number>
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</name>
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           <value>6</value>
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           <value>12</value>
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           <value>10</value>
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           <value>18</value>
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           <value>15</value>
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           <number>26</number>
           <value>12</value>
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        <dataset_item>
           <number>27</number>
           <value>4</value>
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        <dataset_item>
           <number>28</number>
           <value>6</value>
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           <number>29</number>
           <value>19</value>
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           <number>30</number>
           <value>4</value>
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           <number>31</number>
           <value>5</value>
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           <value>11</value>
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           <value>3</value>
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           <number>35</number>
           <value>17</value>
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           <number>36</number>
           <value>8</value>
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           <number>37</number>
           <value>6</value>
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           <number>38</number>
           <value>6</value>
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           <number>39</number>
           <value>3</value>
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           <number>40</number>
           <value>13</value>
        </dataset_item>
        <dataset_item>
           <number>41</number>
           <value>12</value>
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           <number>42</number>
           <value>2</value>
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           <number>43</number>
           <value>9</value>
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           <number>44</number>
           <value>6</value>
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           <number>45</number>
           <value>1</value>
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           <number>46</number>
           <value>6</value>
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           <number>47</number>
           <value>17</value>
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           <number>48</number>
           <value>16</value>
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           <number>49</number>
           <value>1</value>
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           <number>50</number>
           <value>19</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>50</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 
 <!-- categoryid: 450 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Eq. primer grau/Llenguatge algebraic</text></category></question>
 
 <!-- resourceid-resourcedataid: 4653-4193 -->
 <question type="matching">
    <name><text>Aparella llenguatge natural amb algebraic (1)</text>
</name>
    <questiontext format="html">
<text>Aparella els enunciats següents amb cadascuna de les equacions.</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
<subquestion>
<text>Si restem 6 unitats a un nombre i el resultat el multipliquem per 2, obtenim 15.</text>
<answer><text>2·(n - 6) = 15</text>
</answer>
</subquestion>
<subquestion>
<text>El doble d'un nombre menys 6, dóna 15.</text>
<answer><text>2n - 6 = 15</text>
</answer>
</subquestion>
<subquestion>
<text>Si restem sis unitats a un nombre, i el resultat el dividim per 2, obtenim 15</text>
<answer><text>(n - 6) : 2 = 15</text>
</answer>
</subquestion>
<subquestion>
<text>El triple d'un nombre més sis unitats, dona 15 vegades el nombre.</text>
<answer><text>3n + 6 =15 n</text>
</answer>
</subquestion>
<subquestion>
<text></text>
<answer><text>3n + 6 =15</text>
</answer>
</subquestion>
<subquestion>
<text></text>
<answer><text>n:2 - 6 =15</text>
</answer>
</subquestion>
</question>
 
 <!-- resourceid-resourcedataid: 4654-4193 -->
 <question type="matching">
    <name><text>Aparella llenguatge natural amb algebraic (1)</text>
</name>
    <questiontext format="html">
<text>Aparella els enunciats següents amb cadascuna de les equacions.</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
<subquestion>
<text>Si restem 6 unitats a un nombre i el resultat el multipliquem per 2, obtenim 15.</text>
<answer><text>2·(n - 6) = 15</text>
</answer>
</subquestion>
<subquestion>
<text>El doble d'un nombre menys 6, dóna 15.</text>
<answer><text>2n - 6 = 15</text>
</answer>
</subquestion>
<subquestion>
<text>Si restem sis unitats a un nombre, i el resultat el dividim per 2, obtenim 15</text>
<answer><text>(n - 6) : 2 = 15</text>
</answer>
</subquestion>
<subquestion>
<text>El triple d'un nombre més sis unitats, dona 15 vegades el nombre.</text>
<answer><text>3n + 6 =15 n</text>
</answer>
</subquestion>
<subquestion>
<text></text>
<answer><text>3n + 6 =15</text>
</answer>
</subquestion>
<subquestion>
<text></text>
<answer><text>n:2 - 6 =15</text>
</answer>
</subquestion>
</question>
 
 <!-- resourceid-resourcedataid: 4655-4194 -->
 <question type="multichoice">
    <name><text>Edat Montse</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;L'edat de la Montse és el doble que la del seu germà Guillem i entre ambdós igualen els 15 anys del germà gran&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="100">
        <text>
$$n + 2n=15$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n + 2n=15n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n=2n=15$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n \cdot 2n=15$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$2n + 15n=n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4656-4195 -->
 <question type="multichoice">
    <name><text>identitat</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat (pot ser més d'una):</p>
 <p><strong>&quot;La suma de tres nombres naturals consecutius és igual al triple del mitjà&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>false</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="33.333">
        <text>
$$(n-1)+n+(n+1)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="33.333">
        <text>
$$(n-2)+(n-1)+n=3(n-1)$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="33.333">
        <text>
$$n+(n+1)+(n+2)=3(n+1)$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-50">
        <text>
$$n+2n+3n=6n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-50">
        <text>
$$n+1+2+3=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4657-4195 -->
 <question type="multichoice">
    <name><text>identitat</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat (pot ser més d'una):</p>
 <p><strong>&quot;La suma de tres nombres naturals consecutius és igual al triple del mitjà&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>false</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="33.333">
        <text>
$$(n-1)+n+(n+1)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="33.333">
        <text>
$$(n-2)+(n-1)+n=3(n-1)$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="33.333">
        <text>
$$n+(n+1)+(n+2)=3(n+1)$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-50">
        <text>
$$n+2n+3n=6n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-50">
        <text>
$$n+1+2+3=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4660-4197 -->
 <question type="multichoice">
    <name><text>identitat notable (a+b)^2</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma de dos nombres qualssevol elevada al cuadrat, és igual al quadrat del primer, més el doble del primer pel segon més el quadrat del segon&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="100">
        <text>
$$(a+b)^2=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)^2=a^2+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a^2+b^2)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b^2)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a^2+b)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4661-4197 -->
 <question type="multichoice">
    <name><text>identitat notable (a+b)^2</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma de dos nombres qualssevol elevada al cuadrat, és igual al quadrat del primer, més el doble del primer pel segon més el quadrat del segon&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="100">
        <text>
$$(a+b)^2=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)^2=a^2+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a^2+b^2)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b^2)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a^2+b)=a^2+2ab+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4658-4196 -->
 <question type="multichoice">
    <name><text>identitat notable (a+b)(a-b)</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma de dos nombres qualssevol, multiplicada per la seva diferencia, dóna la diferència dels quadrats&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="100">
        <text>
$$(a+b)\cdot (a-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+a)\cdot (b-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)\cdot (a+b)=a^2+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a-b)\cdot (a-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)\cdot (a-b)=a^2+2ab-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4659-4196 -->
 <question type="multichoice">
    <name><text>identitat notable (a+b)(a-b)</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma de dos nombres qualssevol, multiplicada per la seva diferencia, dóna la diferència dels quadrats&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="100">
        <text>
$$(a+b)\cdot (a-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+a)\cdot (b-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)\cdot (a+b)=a^2+b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a-b)\cdot (a-b)=a^2-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(a+b)\cdot (a-b)=a^2+2ab-b^2$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4662-4198 -->
 <question type="multichoice">
    <name><text>n+(n+1)=3n</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma d'un nombre amb el seu doble, dóna el triple del numero&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="-33.333">
        <text>
$$n+(n+1)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n \cdot (2n)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(n+1) \cdot (n+2)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="100">
        <text>
$$n + 2n = 3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n \cdot n^2=n^3$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4663-4198 -->
 <question type="multichoice">
    <name><text>n+(n+1)=3n</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;La suma d'un nombre amb el seu doble, dóna el triple del numero&quot;</strong>?</p>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text><![CDATA[<p></p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>1</shuffleanswers>
    <single>true</single>
    <shuffleanswers>true</shuffleanswers>
    <correctfeedback>      <text></text>
</correctfeedback>
    <partiallycorrectfeedback>      <text></text>
</partiallycorrectfeedback>
    <incorrectfeedback>      <text></text>
</incorrectfeedback>
    <answernumbering>abc</answernumbering>
      <answer fraction="-33.333">
        <text>
$$n+(n+1)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n \cdot (2n)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$(n+1) \cdot (n+2)=3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="100">
        <text>
$$n + 2n = 3n$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
      <answer fraction="-33.333">
        <text>
$$n \cdot n^2=n^3$$
        </text>
      <feedback>
          <text>

          </text>
      </feedback>
    </answer>
</question>
 
 <!-- categoryid: 451 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Equacions biquadrades</text></category></question>
 
 <!-- resourceid-resourcedataid: 4664-4199 -->
 <question type="multianswerwiris">
    <name><text>biquadrada 1</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">#a x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)<br /><div><br /></div><div>x<sub>1</sub>={#1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={#2}</div><div><meta charset="utf-8" />x<sub>3</sub>={#3}</div><div><meta charset="utf-8" />x<sub>4</sub>={#4}</div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">#a x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)<br /><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={1:SA:=\#x2}</div><div><meta charset="utf-8" />x<sub>3</sub>={1:SA:=\#x3}</div><div><meta charset="utf-8" />x<sub>4</sub>={1:SA:=\#x4}</div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»z1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»z2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»s«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»+«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»*«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mo»-«/mo»«mi»a«/mi»«mo»*«/mo»«mi»s«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«/mtable»«mrow»«mi»s«/mi»«mo»§ne;«/mo»«mn»0«/mn»«mo»§and;«/mo»«mi»a«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»{«/mo»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»x3«/mi»«mo»,«/mo»«mi»x4«/mi»«mo»}«/mo»«mo»=«/mo»«mi»ordena«/mi»«mo»(«/mo»«mo»{«/mo»«mo»-«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«mo»-«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»}«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»b«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»c«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»3«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»246«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»243«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»9«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»1«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4665-4199 -->
 <question type="multianswerwiris">
    <name><text>biquadrada 1</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">#a x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)<br /><div><br /></div><div>x<sub>1</sub>={#1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={#2}</div><div><meta charset="utf-8" />x<sub>3</sub>={#3}</div><div><meta charset="utf-8" />x<sub>4</sub>={#4}</div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">#a x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)<br /><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={1:SA:=\#x2}</div><div><meta charset="utf-8" />x<sub>3</sub>={1:SA:=\#x3}</div><div><meta charset="utf-8" />x<sub>4</sub>={1:SA:=\#x4}</div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»z1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»z2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»s«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»+«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»*«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»5«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mo»-«/mo»«mi»a«/mi»«mo»*«/mo»«mi»s«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«/mtable»«mrow»«mi»s«/mi»«mo»§ne;«/mo»«mn»0«/mn»«mo»§and;«/mo»«mi»a«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»{«/mo»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»x3«/mi»«mo»,«/mo»«mi»x4«/mi»«mo»}«/mo»«mo»=«/mo»«mi»ordena«/mi»«mo»(«/mo»«mo»{«/mo»«mo»-«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«mo»-«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»}«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»b«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»c«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»3«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»246«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»243«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»9«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»1«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4666-4200 -->
 <question type="multianswerwiris">
    <name><text>biquadrada 1 (a=1)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={#1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={#2}</div><div><meta charset="utf-8" />x<sub>3</sub>={#3}</div><div><meta charset="utf-8" />x<sub>4</sub>={#4}</div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={1:SA:=\#x2}</div><div><meta charset="utf-8" />x<sub>3</sub>={1:SA:=\#x3}</div><div><meta charset="utf-8" />x<sub>4</sub>={1:SA:=\#x4}</div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»z1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»z2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»s«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»+«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»*«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mo»-«/mo»«mi»a«/mi»«mo»*«/mo»«mi»s«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«/mtable»«mrow»«mi»s«/mi»«mo»§ne;«/mo»«mn»0«/mn»«mo»§and;«/mo»«mi»a«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»{«/mo»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»x3«/mi»«mo»,«/mo»«mi»x4«/mi»«mo»}«/mo»«mo»=«/mo»«mi»ordena«/mi»«mo»(«/mo»«mo»{«/mo»«mo»-«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«mo»-«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»}«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»b«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»c«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»81«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»49«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»520«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»15876«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»9«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»7«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4667-4200 -->
 <question type="multianswerwiris">
    <name><text>biquadrada 1 (a=1)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={#1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={#2}</div><div><meta charset="utf-8" />x<sub>3</sub>={#3}</div><div><meta charset="utf-8" />x<sub>4</sub>={#4}</div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={1:SA:=\#x2}</div><div><meta charset="utf-8" />x<sub>3</sub>={1:SA:=\#x3}</div><div><meta charset="utf-8" />x<sub>4</sub>={1:SA:=\#x4}</div></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»z1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»z2«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»10«/mn»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mi»s«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»+«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»z1«/mi»«mo»*«/mo»«mi»z2«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mo»-«/mo»«mi»a«/mi»«mo»*«/mo»«mi»s«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«/mtable»«mrow»«mi»s«/mi»«mo»§ne;«/mo»«mn»0«/mn»«mo»§and;«/mo»«mi»a«/mi»«mo»§ne;«/mo»«mn»0«/mn»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»{«/mo»«mi»x1«/mi»«mo»,«/mo»«mi»x2«/mi»«mo»,«/mo»«mi»x3«/mi»«mo»,«/mo»«mi»x4«/mi»«mo»}«/mo»«mo»=«/mo»«mi»ordena«/mi»«mo»(«/mo»«mo»{«/mo»«mo»-«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z1«/mi»«/msqrt»«mo»,«/mo»«mo»-«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»,«/mo»«msqrt»«mi»z2«/mi»«/msqrt»«mo»}«/mo»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»b«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s1«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»if«/csymbol»«mrow»«mi»c«/mi»«mo»§gt;«/mo»«mn»0«/mn»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»+«/mo»«mo»§quot;«/mo»«/mrow»«mrow»«mi»s2«/mi»«mo»=«/mo»«mo»§quot;«/mo»«mo»§quot;«/mo»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»4«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»81«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»49«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»520«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»+«/mo»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»15876«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s2«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»9«/mn»«/math»«/output»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x2«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»7«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»z1«/mi»«/math»«/input»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4668-4200 -->
 <question type="multianswerwiris">
    <name><text>biquadrada 1 (a=1)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={#1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={#2}</div><div><meta charset="utf-8" />x<sub>3</sub>={#3}</div><div><meta charset="utf-8" />x<sub>4</sub>={#4}</div></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>4</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol l'equació biquadrada següent:<div><br /><div style="text-align: center; "><font class="Apple-style-span" size="5">x<sup>4</sup>#s1#b x<sup>2</sup>#s2#c=0</font></div><div><br /></div><div>(<b>Ordena les solucions de menor a major, essent x<sub>1</sub> el menor i x<sub>4</sub> el major)</b><br /><div><br /></div><div>x<sub>1</sub>={1:SA:=\#x1}</div></div><div><meta charset="utf-8" />x<sub>2</sub>={1:SA:=\#x2}</div><div><meta charset="utf-8" />x<sub>3</sub>={1:SA:=\#x3}</div><div><meta charset="utf-8" />x<sub>4</sub>={1:SA:=\#x4}</div></div>]]></text>
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 <!-- categoryid: 452 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Problemes</text></category></question>
 
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    <name><text>angles d'un triangle</text>
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 <p>L'angle més gran d'un triangle és el doble que el mitjà i aquest mesura {g} graus més que l'angle més petit. Quant mesura l'angle <strong>més gran</strong>?</p></span>]]></text>
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<text><![CDATA[<p>En una bodega, es vol fer vi rosat mesclant <span lang="CA">vi negre de {n} €/litre amb vi blanc de {b} euros/litre i obtenim {l} litres de vi de {r} euros el litre, quants litres <strong>de vi negre</strong> hem utilitzat?</span></p>
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 <!-- resourceid-resourcedataid: 4671-4194 -->
 <question type="multichoice">
    <name><text>Edat Montse</text>
</name>
    <questiontext format="html">
<text><![CDATA[<p>Quina de les equacions següents es correspon amb l'enunciat:</p>
 <p><strong>&quot;L'edat de la Montse és el doble que la del seu germà Guillem i entre ambdós igualen els 15 anys del germà gran&quot;</strong>?</p>]]></text>
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<text><![CDATA[<p></p>]]></text>
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    <answernumbering>abc</answernumbering>
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$$n + 2n=15$$
        </text>
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          <text>

          </text>
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      <answer fraction="-33.333">
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$$n + 2n=15n$$
        </text>
      <feedback>
          <text>

          </text>
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      <answer fraction="-33.333">
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$$n=2n=15$$
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      <feedback>
          <text>

          </text>
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      <answer fraction="-33.333">
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$$n \cdot 2n=15$$
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      <feedback>
          <text>

          </text>
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      <answer fraction="-33.333">
        <text>
$$2n + 15n=n$$
        </text>
      <feedback>
          <text>

          </text>
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 <!-- resourceid-resourcedataid: 4672-4191 -->
 <question type="calculated">
    <name><text>Llaunes</text>
</name>
    <questiontext format="html">
<text><![CDATA[<span lang="CA">
 <p>Hem comprat begudes per a {a} amics, entre coca-coles i fantes. Quantes coca-coles hem comprat si sabem que en total ens hem gastat {t} euros, que el preu d'una coca-cola és de {c} euros i que el d'una fanta és de {f} euros?</p></span>]]></text>
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<text></text>
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<answer fraction="100">
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 <!-- resourceid-resourcedataid: 4673-4192 -->
 <question type="calculated">
    <name><text>trobada entre 2 ciutats</text>
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<text><![CDATA[<span lang="CA">
 <p>Un vianant surt d'una ciutat A cap a una altra ciutat B, que dista {D} km del punt A, a una velocitat de {v1} km/h. En el mateix moment un altre vianant surt de B cap a A a una velocitat de {v2} km/h. A quina distància del punt A coincidiran tots dos vianants?</p></span>]]></text>
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    <text>({v1}*{D})/({v1}+{v2})</text>
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 <!-- categoryid: 453 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Sistemes equacions lineals (2x2)</text></category></question>
 
 <!-- resourceid-resourcedataid: 4674-4201 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per igualació de x)</text>
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<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
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    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mn»1«/mn»«mo»;«/mo»«mi»c«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x«/mi»«mo»-«/mo»«mn»3«/mn»«mo»*«/mo»«mi»y«/mi»«mo»,«/mo»«mi»x«/mi»«mo»-«/mo»«mn»5«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4675-4202 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per igualació de y)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mn»1«/mn»«mo»;«/mo»«mi»d«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»3«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mn»5«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4676-4203 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per reducció restant directament eliminem la x)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4677-4204 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per reducció restant directament eliminem la y)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4678-4205 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per reducció sumant directament eliminem la x)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mo»-«/mo»«mi»a«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4679-4206 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per reducció sumant directament eliminem la y)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mo»-«/mo»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4680-4207 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per substitució la 1a a la 2a)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4681-4208 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (preparat per substitució la 2a a la 1a)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4682-4209 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria amb les dues solucions racionals)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§notin;«/mo»«integers/»«mo»§nbsp;«/mo»«mo»§and;«/mo»«mo»§nbsp;«/mo»«mi»y1«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»20«/mn»«mo»*«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»5«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4683-4210 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria amb les dues solucions racionals) (2)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§notin;«/mo»«integers/»«mo»§nbsp;«/mo»«mo»§and;«/mo»«mo»§nbsp;«/mo»«mi»y1«/mi»«mo»§notin;«/mo»«integers/»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»20«/mn»«mo»*«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»5«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4684-4211 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria amb una solució racional)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§notin;«/mo»«integers/»«mo»§nbsp;«/mo»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»20«/mn»«mo»*«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»5«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4685-4212 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria amb una solució racional) (2)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mfrac»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mrow»«mrow»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/mrow»«/mfrac»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»x1«/mi»«mo»§notin;«/mo»«integers/»«mo»§nbsp;«/mo»«/mrow»«/apply»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»p1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»denominador«/mi»«mo»(«/mo»«mi»q1«/mi»«mo»)«/mo»«mo»*«/mo»«mi»q1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»20«/mn»«mo»*«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»10«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»5«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4686-4213 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4687-4214 -->
 <question type="multianswerwiris">
    <name><text>sistema 2x2 (totalment aleatòria) (2)</text>
</name>
    <questiontext format="html">
<text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={#1}</div><div>y={#2}</div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[Resol el sistema d'equacions següent:<div><span class="nolink">«math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;»«mfenced close=&quot;&quot; open=&quot;{&quot;»«mtable»«mtr»«mtd»«mi»#p«/mi»«mo»=«/mo»«mi»#p1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»#q«/mi»«mo»=«/mo»«mi»#q1«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</span><br /></div><div><b>SOLUCIÓ:</b></div><div>x={:SA:=#x1}</div><div>y={:SA:=#y1}</div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«apply»«csymbol definitionURL=¨http://www.wiris.com/XML/csymbol¨»repeat«/csymbol»«mtable»«mtr»«mtd»«mi»x1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»y1«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mo»-«/mo»«mn»10«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»d«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«mo»*«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mo»-«/mo»«mn»1«/mn»«mo»,«/mo»«mn»1«/mn»«mo»}«/mo»«/mtd»«/mtr»«mtr»«mtd»«mi»p«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»p1«/mi»«mo»=«/mo»«mi»a«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»b«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»q1«/mi»«mo»=«/mo»«mi»c«/mi»«mo»*«/mo»«mi»x1«/mi»«mo»+«/mo»«mi»d«/mi»«mo»*«/mo»«mi»y1«/mi»«/mtd»«/mtr»«mtr»«mtd/»«/mtr»«/mtable»«mrow»«mi»rang«/mi»«mo»(«/mo»«mfenced»«mtable»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mi»b«/mi»«/mtd»«/mtr»«mtr»«mtd»«mi»c«/mi»«/mtd»«mtd»«mi»d«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»)«/mo»«mo»=«/mo»«mn»2«/mn»«/mrow»«/apply»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»,«/mo»«mi»q«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»4«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mi»y«/mi»«mo»,«/mo»«mo»-«/mo»«mn»2«/mn»«mo»*«/mo»«mi»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»y«/mi»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x1«/mi»«mo»,«/mo»«mi»y1«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»8«/mn»«mo»,«/mo»«mn»3«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- categoryid: 454 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Sistemes equacions lineals (2x2)/Problemes (sistemes 2x2)</text></category></question>
 
 <!-- resourceid-resourcedataid: 4688-4215 -->
 <question type="multianswerwiris">
    <name><text>barreja cafè</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div><div>Hem barrejat cafè de #pb €/kg amb cafè de #pc €/kg i hem obtingut una barreja de #t Kg que costa #pt €/kg. Quants quilos de cafè hem posat de cada classe?</div></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {#1} kg del barat i {#2} kg del car.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div><div>Hem barrejat cafè de #pb €/kg amb cafè de #pc €/kg i hem obtingut una barreja de #t Kg que costa #pt €/kg. Quants quilos de cafè hem posat de cada classe?</div></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {:SA:=#b} kg del barat i {:SA:=#c} kg del car.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»b«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pb«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pc«/mi»«mo»=«/mo»«mi»pb«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»5«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mo»=«/mo»«mi»b«/mi»«mo»+«/mo»«mi»c«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«mo»=«/mo»«mfenced close=¨§rfloor;¨ open=¨§lfloor;¨»«mrow»«mfrac»«mrow»«mi»pb«/mi»«mo»*«/mo»«mi»b«/mi»«mo»+«/mo»«mi»pc«/mi»«mo»*«/mo»«mi»c«/mi»«/mrow»«mi»t«/mi»«/mfrac»«mo»*«/mo»«mn»100«/mn»«/mrow»«/mfenced»«mo»/«/mo»«mn»100«/mn»«mo».«/mo»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3.6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4689-4216 -->
 <question type="multianswerwiris">
    <name><text>Envasat d'oli</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div><div>Una empresa oliera, té #lt litres d'oli per a envasar.</div><div>Actualment tenim per omplir garrafes de #lg litres, i ampolles de #la litres.</div><div>En total s'han omplert #t envasos (entre garrafes i ampolles).</div><div>Quans envasos de cada tipus s'han omplert?</div></div><div><br /></div><div><b>RESPOSTA:</b></div><div><b>S'han omplert {#1} garrafes i {#2} ampolles.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div><div>Una empresa oliera, té #lt litres d'oli per a envasar.</div><div>Actualment tenim per omplir garrafes de #lg litres, i ampolles de #la litres.</div><div>En total s'han omplert #t envasos (entre garrafes i ampolles).</div><div>Quans envasos de cada tipus s'han omplert?</div></div><div><br /></div><div><b>RESPOSTA:</b></div><div><b>S'han omplert {:SA:=#g} garrafes i {:SA:=#a} ampolles.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»lg«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»{«/mo»«mn»5«/mn»«mo»,«/mo»«mn»8«/mn»«mo»,«/mo»«mn»12«/mn»«mo»,«/mo»«mn»16«/mn»«mo»}«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»la«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»3«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»g«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»100«/mn»«mo»,«/mo»«mn»400«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»100«/mn»«mo»,«/mo»«mn»400«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mo»=«/mo»«mi»g«/mi»«mo»+«/mo»«mi»a«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»lt«/mi»«mo»=«/mo»«mi»g«/mi»«mo»*«/mo»«mi»lg«/mi»«mo»+«/mo»«mi»a«/mi»«mo»*«/mo»«mi»la«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3.6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4690-4217 -->
 <question type="multianswerwiris">
    <name><text>jocs GAME</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div><div>A la botiga GAME hi ha jocs de segona mà.</div><div>Els jocs de la nintendo DS valen a #pn €, i els jocs de la sony PSP valen #ps €.</div><div>Se m'ha anat l'olla i he comprat en total #tj jocs! I m'ha costat #pt €.</div><div><br /></div><div>Quans jocs de cada he comprat?</div><div><br /></div></div><div><b>RESPOSTA:</b></div><div><b>He comprat {#1} jocs de la DS i {#2} jocs de la PSP.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div><div>A la botiga GAME hi ha jocs de segona mà.</div><div>Els jocs de la nintendo DS valen a #pn €, i els jocs de la sony PSP valen #ps €.</div><div>Se m'ha anat l'olla i he comprat en total #tj jocs! I m'ha costat #pt €.</div><div><br /></div><div>Quans jocs de cada he comprat?</div><div><br /></div></div><div><b>RESPOSTA:</b></div><div><b>He comprat {:SA:=#n} jocs de la DS i {:SA:=#s} jocs de la PSP.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pn«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»10«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»ps«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»10«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»n«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»2«/mn»«mo»,«/mo»«mn»20«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»tj«/mi»«mo»=«/mo»«mi»n«/mi»«mo»+«/mo»«mi»s«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«mo»=«/mo»«mi»n«/mi»«mo»*«/mo»«mi»pn«/mi»«mo»+«/mo»«mi»s«/mi»«mo»*«/mo»«mi»ps«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3.6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4691-4218 -->
 <question type="multianswerwiris">
    <name><text>llet sencera/semi</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div><div>Hem anat al Mercadona a comprar #tt tetrabriks de llet.</div><div>La llet sencera té un preu de #pe € i la semi #ps €.</div><div>En total hem comprat #t briks de llet i m'han costat #pt €.</div><div>Quanta llet de cada hem comprat?</div></div><div><b>RESPOSTA:</b></div><div><b>Hem comprat {#1} briks de llet sencera, i {#2} de semi.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div><div>Hem anat al Mercadona a comprar #tt tetrabriks de llet.</div><div>La llet sencera té un preu de #pe € i la semi #ps €.</div><div>En total hem comprat #t briks de llet i m'han costat #pt €.</div><div>Quanta llet de cada hem comprat?</div></div><div><b>RESPOSTA:</b></div><div><b>Hem comprat {:SA:=#e} briks de llet sencera, i {:SA:=#s} de semi.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»e«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»1«/mn»«mo»,«/mo»«mn»12«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»ps«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»50«/mn»«mo»,«/mo»«mn»100«/mn»«mo»)«/mo»«mo»/«/mo»«mn»100«/mn»«mo».«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pe«/mi»«mo»=«/mo»«mi»ps«/mi»«mo»+«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»5«/mn»«mo»,«/mo»«mn»30«/mn»«mo»)«/mo»«mo»/«/mo»«mn»100«/mn»«mo».«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mo»=«/mo»«mi»e«/mi»«mo»+«/mo»«mi»s«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«mo»=«/mo»«mi»e«/mi»«mo»*«/mo»«mi»pe«/mi»«mo»+«/mo»«mi»s«/mi»«mo»*«/mo»«mi»ps«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»pt«/mi»«/math»«/input»«output»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mn»3.6«/mn»«/math»«/output»«/command»«/group»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4692-4219 -->
 <question type="multianswerwiris">
    <name><text>rodes parking</text>
</name>
    <questiontext format="html">
<text><![CDATA[<div>En un pàrquing hi ha cotxes i motos. En total hi ha #vt vehicles, i sumen #rt rodes (sense comptar rodes de recanvi). Quants vehicles de cada tipus hi ha?</div><div><br /></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {#1} cotxes i {#2} motos.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[<div>En un pàrquing hi ha cotxes i motos. En total hi ha #vt vehicles, i sumen #rt rodes (sense comptar rodes de recanvi). Quants vehicles de cada tipus hi ha?</div><div><br /></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {:SA:=#c} cotxes i {:SA:=#m} motos.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»20«/mn»«mo»,«/mo»«mn»200«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»m«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»20«/mn»«mo»,«/mo»«mn»200«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»vt«/mi»«mo»=«/mo»«mi»c«/mi»«mo»+«/mo»«mi»m«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»rt«/mi»«mo»=«/mo»«mn»4«/mn»«mo»*«/mo»«mi»c«/mi»«mo»+«/mo»«mn»2«/mn»«mo»*«/mo»«mi»m«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- resourceid-resourcedataid: 4693-4220 -->
 <question type="multianswerwiris">
    <name><text>Tamborets a la cafeteria</text>
</name>
    <questiontext format="html">
<text><![CDATA[En una cafeteria hi ha tamborets de 3 potes i cadires de 4 potes. Entre tots els seients sumen #p potes, i s'hi poden asseure #a persones. Quants tamborets i cadires hi ha?<div><br /></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {#1} tamborets i {#2} cadires.</b></div>]]></text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>2</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<wirisquestiontext><text><![CDATA[En una cafeteria hi ha tamborets de 3 potes i cadires de 4 potes. Entre tots els seients sumen #p potes, i s'hi poden asseure #a persones. Quants tamborets i cadires hi ha?<div><br /></div><div><b>RESPOSTA:</b></div><div><b>Hi ha {:SA:=#t} tamborets i {:SA:=#c} cadires.</b></div>]]></text>
</wirisquestiontext><wirisquestion>«session lang=¨ca¨ version=¨2.0¨»«library closed=¨false¨»«mtext style=¨color:#ffc800¨ xml:lang=¨es¨»variables«/mtext»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»c«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»4«/mn»«mo»,«/mo»«mn»50«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mo»=«/mo»«mi»aleatori«/mi»«mo»(«/mo»«mn»5«/mn»«mo»,«/mo»«mn»25«/mn»«mo»)«/mo»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«mo»=«/mo»«mi»c«/mi»«mo»+«/mo»«mi»t«/mi»«/math»«/input»«/command»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»p«/mi»«mo»=«/mo»«mn»4«/mn»«mo»*«/mo»«mi»c«/mi»«mo»+«/mo»«mn»3«/mn»«mo»*«/mo»«mi»t«/mi»«/math»«/input»«/command»«/group»«/library»«group»«command»«input»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨/»«/input»«/command»«/group»«/session»</wirisquestion><wirisoptions></wirisoptions></question>
 
 <!-- categoryid: 455 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/Valor numeric d'un polinomi (1r grau)</text></category></question>
 
 <!-- resourceid-resourcedataid: 4694-4221 -->
 <question type="shortanswer">
    <name><text>$$  \left( 32 - 24 \right)  x  ,  x  = 10 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  \left( 32 - 24 \right)  x  ,  x  = 10 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
80
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4695-4222 -->
 <question type="shortanswer">
    <name><text>$$  \left( 50 - 6 \right)  x  ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  \left( 50 - 6 \right)  x  ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
88
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4696-4223 -->
 <question type="shortanswer">
    <name><text>$$  \left( 51 - 49 \right)  x  ,  x  = 30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  \left( 51 - 49 \right)  x  ,  x  = 30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
60
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4702-4229 -->
 <question type="shortanswer">
    <name><text>$$  x  -  \left( 18 + 22 \right)  ,  x  = 81 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  -  \left( 18 + 22 \right)  ,  x  = 81 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
41
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4703-4230 -->
 <question type="shortanswer">
    <name><text>$$  x  -  \left( 93 - 75 \right)  ,  x  = 95 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  -  \left( 93 - 75 \right)  ,  x  = 95 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
77
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4704-4231 -->
 <question type="shortanswer">
    <name><text>$$  x  - 20 + 8 ,  x  = 95 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  - 20 + 8 ,  x  = 95 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
83
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4705-4232 -->
 <question type="shortanswer">
    <name><text>$$  x  - 31\cdot3 ,  x  = 100 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  - 31\cdot3 ,  x  = 100 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
7
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4706-4233 -->
 <question type="shortanswer">
    <name><text>$$  x  - 5\cdot5 ,  x  = 65 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  - 5\cdot5 ,  x  = 65 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
40
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4707-4234 -->
 <question type="shortanswer">
    <name><text>$$  x  - 9\cdot3 ,  x  = 79 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  - 9\cdot3 ,  x  = 79 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
52
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4708-4235 -->
 <question type="shortanswer">
    <name><text>$$  x  - 9\cdot7 ,  x  = 80 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  - 9\cdot7 ,  x  = 80 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
17
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4709-4236 -->
 <question type="shortanswer">
    <name><text>$$  x  \left( 44 - 27 \right)  ,  x  = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  \left( 44 - 27 \right)  ,  x  = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
51
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4710-4237 -->
 <question type="shortanswer">
    <name><text>$$  x  \left( 7 + 4 \right)  ,  x  = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  \left( 7 + 4 \right)  ,  x  = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
55
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4697-4224 -->
 <question type="shortanswer">
    <name><text>$$  x  + 12 + 53 ,  x  = 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  + 12 + 53 ,  x  = 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
74
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4698-4225 -->
 <question type="shortanswer">
    <name><text>$$  x  + 2 + 3 ,  x  = 90 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  + 2 + 3 ,  x  = 90 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
95
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4699-4226 -->
 <question type="shortanswer">
    <name><text>$$  x  + 33 - 57 ,  x  = 38 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  + 33 - 57 ,  x  = 38 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
14
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4700-4227 -->
 <question type="shortanswer">
    <name><text>$$  x  + 34 + 2 ,  x  = 23 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  + 34 + 2 ,  x  = 23 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
59
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4701-4228 -->
 <question type="shortanswer">
    <name><text>$$  x  + 5 + 3 ,  x  = 67 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x  + 5 + 3 ,  x  = 67 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
75
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4711-4238 -->
 <question type="shortanswer">
    <name><text>$$  x \frac{82} {41} ,  x  = 29 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$  x \frac{82} {41} ,  x  = 29 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
58
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4771-4298 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x  - 19} {2} ,  x  = 81 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x  - 19} {2} ,  x  = 81 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
31
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4770-4297 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x  + 56} {4} ,  x  = 36 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x  + 56} {4} ,  x  = 36 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
23
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4772-4299 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {1 + 1} ,  x  = 44 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {1 + 1} ,  x  = 44 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
22
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4773-4300 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {1 + 1} ,  x  = 56 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {1 + 1} ,  x  = 56 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
28
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4776-4303 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {2} - 35 ,  x  = 94 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {2} - 35 ,  x  = 94 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
12
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4775-4302 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {2} + 31 ,  x  = 90 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {2} + 31 ,  x  = 90 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
76
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4774-4301 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {25 - 21} ,  x  = 40 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {25 - 21} ,  x  = 40 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
10
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4778-4305 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {4} + 6 ,  x  = 60 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {4} + 6 ,  x  = 60 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
21
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4777-4304 -->
 <question type="shortanswer">
    <name><text>$$ \frac{ x } {48 - 46} ,  x  = 100 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{ x } {48 - 46} ,  x  = 100 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
50
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4779-4306 -->
 <question type="shortanswer">
    <name><text>$$ \frac{10\cdot4} { x } ,  x  = 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{10\cdot4} { x } ,  x  = 8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
5
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4780-4307 -->
 <question type="shortanswer">
    <name><text>$$ \frac{14 x } {2} ,  x  = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{14 x } {2} ,  x  = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
35
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4781-4308 -->
 <question type="shortanswer">
    <name><text>$$ \frac{20 + 54} { x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{20 + 54} { x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
37
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4782-4309 -->
 <question type="shortanswer">
    <name><text>$$ \frac{24} {2 x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{24} {2 x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
6
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4783-4310 -->
 <question type="shortanswer">
    <name><text>$$ \frac{33 + 43} { x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{33 + 43} { x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
38
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4784-4311 -->
 <question type="shortanswer">
    <name><text>$$ \frac{40} { x } + 30 ,  x  = 20 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{40} { x } + 30 ,  x  = 20 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
32
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4785-4312 -->
 <question type="shortanswer">
    <name><text>$$ \frac{42 + 56} { x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{42 + 56} { x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
49
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4786-4313 -->
 <question type="shortanswer">
    <name><text>$$ \frac{54} { x  + 9} ,  x  = 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{54} { x  + 9} ,  x  = 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
3
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4787-4314 -->
 <question type="shortanswer">
    <name><text>$$ \frac{54} { x } + 10 ,  x  = 6 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{54} { x } + 10 ,  x  = 6 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
19
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4788-4315 -->
 <question type="shortanswer">
    <name><text>$$ \frac{64 -  x } {14} ,  x  = 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{64 -  x } {14} ,  x  = 8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
4
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4789-4316 -->
 <question type="shortanswer">
    <name><text>$$ \frac{66} {1 +  x } ,  x  = 1 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{66} {1 +  x } ,  x  = 1 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
33
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4790-4317 -->
 <question type="shortanswer">
    <name><text>$$ \frac{76} {19 x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{76} {19 x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
2
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4791-4318 -->
 <question type="shortanswer">
    <name><text>$$ \frac{84} { x  + 1} ,  x  = 1 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{84} { x  + 1} ,  x  = 1 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
42
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4793-4320 -->
 <question type="shortanswer">
    <name><text>$$ \frac{9\cdot8} { x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{9\cdot8} { x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
36
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4792-4319 -->
 <question type="shortanswer">
    <name><text>$$ \frac{90} {3} -  x  ,  x  = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ \frac{90} {3} -  x  ,  x  = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
27
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4713-4240 -->
 <question type="shortanswer">
    <name><text>$$ 10\cdot9 +  x  ,  x  = 10 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 10\cdot9 +  x  ,  x  = 10 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
100
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4712-4239 -->
 <question type="shortanswer">
    <name><text>$$ 100 - 15 +  x  ,  x  = 12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 100 - 15 +  x  ,  x  = 12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
97
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4714-4241 -->
 <question type="shortanswer">
    <name><text>$$ 11 \left(  x  + 3 \right)  ,  x  = 1 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 11 \left(  x  + 3 \right)  ,  x  = 1 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
44
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4715-4242 -->
 <question type="shortanswer">
    <name><text>$$ 12 + 2 +  x  ,  x  = 12 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 12 + 2 +  x  ,  x  = 12 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
26
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4716-4243 -->
 <question type="shortanswer">
    <name><text>$$ 12 + 7 x  ,  x  = 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 12 + 7 x  ,  x  = 8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
68
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4717-4244 -->
 <question type="shortanswer">
    <name><text>$$ 12\cdot\frac{ x } {23} ,  x  = 92 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 12\cdot\frac{ x } {23} ,  x  = 92 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
48
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4718-4245 -->
 <question type="shortanswer">
    <name><text>$$ 13 + 63 -  x  ,  x  = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 13 + 63 -  x  ,  x  = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
71
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4720-4247 -->
 <question type="shortanswer">
    <name><text>$$ 15 \left( 80 -  x  \right)  ,  x  = 77 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 15 \left( 80 -  x  \right)  ,  x  = 77 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
45
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4719-4246 -->
 <question type="shortanswer">
    <name><text>$$ 15 + 36 -  x  ,  x  = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 15 + 36 -  x  ,  x  = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
46
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4721-4248 -->
 <question type="shortanswer">
    <name><text>$$ 17 x  - 44 ,  x  = 4 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 17 x  - 44 ,  x  = 4 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
24
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4722-4249 -->
 <question type="shortanswer">
    <name><text>$$ 17\cdot3 +  x  ,  x  = 30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 17\cdot3 +  x  ,  x  = 30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
81
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4723-4250 -->
 <question type="shortanswer">
    <name><text>$$ 18 + 2 x  ,  x  = 26 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 18 + 2 x  ,  x  = 26 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
70
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4724-4251 -->
 <question type="shortanswer">
    <name><text>$$ 19 x  + 16 ,  x  = 4 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 19 x  + 16 ,  x  = 4 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
92
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4725-4252 -->
 <question type="shortanswer">
    <name><text>$$ 19\cdot\frac{66} { x } ,  x  = 22 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 19\cdot\frac{66} { x } ,  x  = 22 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
57
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4728-4255 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left(  x  - 31 \right)  ,  x  = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left(  x  - 31 \right)  ,  x  = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
34
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4727-4254 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left(  x  + 8 \right)  ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left(  x  + 8 \right)  ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
20
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4729-4256 -->
 <question type="shortanswer">
    <name><text>$$ 2 \left( 11 +  x  \right)  ,  x  = 20 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 \left( 11 +  x  \right)  ,  x  = 20 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
62
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4726-4253 -->
 <question type="shortanswer">
    <name><text>$$ 2 + 13 +  x  ,  x  = 79 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 2 + 13 +  x  ,  x  = 79 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
94
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4730-4257 -->
 <question type="shortanswer">
    <name><text>$$ 22 + \frac{78} { x } ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 22 + \frac{78} { x } ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
61
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4731-4258 -->
 <question type="shortanswer">
    <name><text>$$ 24 + \frac{ x } {2} ,  x  = 58 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 24 + \frac{ x } {2} ,  x  = 58 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
53
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4732-4259 -->
 <question type="shortanswer">
    <name><text>$$ 27 +  x  + 22 ,  x  = 29 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 27 +  x  + 22 ,  x  = 29 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
78
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4733-4260 -->
 <question type="shortanswer">
    <name><text>$$ 28 +  x  + 34 ,  x  = 36 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 28 +  x  + 34 ,  x  = 36 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
98
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4734-4261 -->
 <question type="shortanswer">
    <name><text>$$ 3 \left(  x  + 15 \right)  ,  x  = 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 3 \left(  x  + 15 \right)  ,  x  = 8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
69
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4735-4262 -->
 <question type="shortanswer">
    <name><text>$$ 32\cdot\frac{ x } {7} ,  x  = 21 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 32\cdot\frac{ x } {7} ,  x  = 21 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
96
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4736-4263 -->
 <question type="shortanswer">
    <name><text>$$ 38 + 14 x  ,  x  = 2 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 38 + 14 x  ,  x  = 2 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
66
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4737-4264 -->
 <question type="shortanswer">
    <name><text>$$ 4 +  x  - 10 ,  x  = 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 +  x  - 10 ,  x  = 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
8
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4738-4265 -->
 <question type="shortanswer">
    <name><text>$$ 4 + 26 -  x  ,  x  = 19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4 + 26 -  x  ,  x  = 19 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
11
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4744-4271 -->
 <question type="shortanswer">
    <name><text>$$ 4\cdot\frac{ x } {3} ,  x  = 48 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4\cdot\frac{ x } {3} ,  x  = 48 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
64
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4743-4270 -->
 <question type="shortanswer">
    <name><text>$$ 4\cdot2 +  x  ,  x  = 10 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 4\cdot2 +  x  ,  x  = 10 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
18
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4739-4266 -->
 <question type="shortanswer">
    <name><text>$$ 41\cdot\frac{ x } {16} ,  x  = 32 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 41\cdot\frac{ x } {16} ,  x  = 32 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
82
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4740-4267 -->
 <question type="shortanswer">
    <name><text>$$ 42 - \frac{ x } {2} ,  x  = 26 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 42 - \frac{ x } {2} ,  x  = 26 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
29
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4741-4268 -->
 <question type="shortanswer">
    <name><text>$$ 47 + 3 x  ,  x  = 13 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 47 + 3 x  ,  x  = 13 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
86
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4742-4269 -->
 <question type="shortanswer">
    <name><text>$$ 47 + 6 +  x  ,  x  = 1 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 47 + 6 +  x  ,  x  = 1 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
54
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4746-4273 -->
 <question type="shortanswer">
    <name><text>$$ 5 \left( 59 -  x  \right)  ,  x  = 53 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 5 \left( 59 -  x  \right)  ,  x  = 53 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
30
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4745-4272 -->
 <question type="shortanswer">
    <name><text>$$ 5 + 76 +  x  ,  x  = 8 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 5 + 76 +  x  ,  x  = 8 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
89
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4747-4274 -->
 <question type="shortanswer">
    <name><text>$$ 53 -  \left( 40 -  x  \right)  ,  x  = 30 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 53 -  \left( 40 -  x  \right)  ,  x  = 30 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
43
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4748-4275 -->
 <question type="shortanswer">
    <name><text>$$ 54 + 95 -  x  ,  x  = 84 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 54 + 95 -  x  ,  x  = 84 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
65
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4749-4276 -->
 <question type="shortanswer">
    <name><text>$$ 56 - 20 +  x  ,  x  = 37 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 56 - 20 +  x  ,  x  = 37 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
73
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4750-4277 -->
 <question type="shortanswer">
    <name><text>$$ 59 -  x  + 76 ,  x  = 36 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 59 -  x  + 76 ,  x  = 36 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
99
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4753-4280 -->
 <question type="shortanswer">
    <name><text>$$ 6 \left( 1 +  x  \right)  ,  x  = 11 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 6 \left( 1 +  x  \right)  ,  x  = 11 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
72
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4751-4278 -->
 <question type="shortanswer">
    <name><text>$$ 6 + 15 +  x  ,  x  = 63 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 6 + 15 +  x  ,  x  = 63 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
84
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4752-4279 -->
 <question type="shortanswer">
    <name><text>$$ 6 + 17 +  x  ,  x  = 44 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 6 + 17 +  x  ,  x  = 44 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
67
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4754-4281 -->
 <question type="shortanswer">
    <name><text>$$ 61 -  x  + 41 ,  x  = 15 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 61 -  x  + 41 ,  x  = 15 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
87
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4755-4282 -->
 <question type="shortanswer">
    <name><text>$$ 61 - 56 +  x  ,  x  = 42 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 61 - 56 +  x  ,  x  = 42 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
47
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4756-4283 -->
 <question type="shortanswer">
    <name><text>$$ 65 -  \left(  x  - 6 \right)  ,  x  = 56 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 65 -  \left(  x  - 6 \right)  ,  x  = 56 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
15
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4757-4284 -->
 <question type="shortanswer">
    <name><text>$$ 67 + 20 +  x  ,  x  = 6 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 67 + 20 +  x  ,  x  = 6 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
93
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4758-4285 -->
 <question type="shortanswer">
    <name><text>$$ 7 x  - 24 ,  x  = 7 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 7 x  - 24 ,  x  = 7 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
25
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4760-4287 -->
 <question type="shortanswer">
    <name><text>$$ 7\cdot11 -  x  ,  x  = 61 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 7\cdot11 -  x  ,  x  = 61 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
16
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4759-4286 -->
 <question type="shortanswer">
    <name><text>$$ 74 - 3 +  x  ,  x  = 19 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 74 - 3 +  x  ,  x  = 19 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
90
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4761-4288 -->
 <question type="shortanswer">
    <name><text>$$ 8 -  \left(  x  - 7 \right)  ,  x  = 14 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 8 -  \left(  x  - 7 \right)  ,  x  = 14 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
1
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4764-4291 -->
 <question type="shortanswer">
    <name><text>$$ 8\cdot5 -  x  ,  x  = 27 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 8\cdot5 -  x  ,  x  = 27 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
13
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4762-4289 -->
 <question type="shortanswer">
    <name><text>$$ 85 -  \left( 46 -  x  \right)  ,  x  = 17 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 85 -  \left( 46 -  x  \right)  ,  x  = 17 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
56
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4763-4290 -->
 <question type="shortanswer">
    <name><text>$$ 88 - 3 x  ,  x  = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 88 - 3 x  ,  x  = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
79
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4765-4292 -->
 <question type="shortanswer">
    <name><text>$$ 9 \left( 2 +  x  \right)  ,  x  = 5 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 9 \left( 2 +  x  \right)  ,  x  = 5 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
63
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4766-4293 -->
 <question type="shortanswer">
    <name><text>$$ 9 x  - 18 ,  x  = 3 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 9 x  - 18 ,  x  = 3 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
    <usecase>0</usecase>
     <answer fraction="100">
      <text>
9
      </text>
      <feedback>
        <text>

        </text>
      </feedback>
    </answer>
</question>
 
 <!-- resourceid-resourcedataid: 4767-4294 -->
 <question type="shortanswer">
    <name><text>$$ 93 - 6 x  ,  x  = 9 $$</text>
</name>
    <questiontext format="moodle_auto_format">
<text>$$ 93 - 6 x  ,  x  = 9 $$</text>
    </questiontext>
    <image></image>
    <generalfeedback>
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39
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 <!-- resourceid-resourcedataid: 4768-4295 -->
 <question type="shortanswer">
    <name><text>$$ 93 - 9 +  x  ,  x  = 7 $$</text>
</name>
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<text>$$ 93 - 9 +  x  ,  x  = 7 $$</text>
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91
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 <!-- resourceid-resourcedataid: 4769-4296 -->
 <question type="shortanswer">
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<text>$$ 97 -  x  + 38 ,  x  = 50 $$</text>
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85
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 <!-- categoryid: 456 -->
 <question type="category"><category><text>Categoria per defecte en Matemàtiques - 4t dESO/Equacions/valor numeric de polinomis (2n grau)</text></category></question>
 
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    <name><text>valor numèric (segon grau)</text>
</name>
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<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
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<text></text>
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    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
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</question>
 
 <!-- resourceid-resourcedataid: 4795-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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<dataset_definition>
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</status>
    <name><text>a</text>
</name>
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</distribution>
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</question>
 
 <!-- resourceid-resourcedataid: 4796-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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</name>
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</distribution>
    <minimum><text>-5</text>
</minimum>
    <maximum><text>5</text>
</maximum>
    <decimals><text>0</text>
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</name>
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</question>
 
 <!-- resourceid-resourcedataid: 4797-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
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    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
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    <feedback><text></text>
</feedback>
</answer>
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</name>
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</distribution>
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</minimum>
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</maximum>
    <decimals><text>0</text>
</decimals>
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</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4798-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>a</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-5</text>
</minimum>
    <maximum><text>5</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>60</itemcount>
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           <number>1</number>
           <value>7</value>
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           <number>2</number>
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</question>
 
 <!-- resourceid-resourcedataid: 4799-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
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</feedback>
</answer>
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</question>
 
 <!-- resourceid-resourcedataid: 4800-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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<dataset_definition>
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</name>
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</distribution>
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</question>
 
 <!-- resourceid-resourcedataid: 4801-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
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    <name><text>a</text>
</name>
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</distribution>
    <minimum><text>-5</text>
</minimum>
    <maximum><text>5</text>
</maximum>
    <decimals><text>0</text>
</decimals>
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</question>
 
 <!-- resourceid-resourcedataid: 4802-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
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    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
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</feedback>
</answer>
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</dataset_definitions>
</question>
 
 <!-- resourceid-resourcedataid: 4803-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>a</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-5</text>
</minimum>
    <maximum><text>5</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>60</itemcount>
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           <number>1</number>
           <value>7</value>
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           <number>2</number>
           <value>2</value>
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           <number>6</number>
           <value>5</value>
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</question>
 
 <!-- resourceid-resourcedataid: 4804-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
    <correctanswerlength>1</correctanswerlength>
    <feedback><text></text>
</feedback>
</answer>
<dataset_definitions>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>a</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-5</text>
</minimum>
    <maximum><text>5</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>60</itemcount>
    <dataset_items>
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           <number>1</number>
           <value>7</value>
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           <number>2</number>
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        <dataset_item>
           <number>3</number>
           <value>-2</value>
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        <dataset_item>
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</question>
 
 <!-- resourceid-resourcedataid: 4805-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
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</feedback>
</answer>
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</name>
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</distribution>
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    <name><text>valor numèric (segon grau)</text>
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</question>
 
 <!-- resourceid-resourcedataid: 4807-4321 -->
 <question type="calculated">
    <name><text>valor numèric (segon grau)</text>
</name>
    <questiontext format="moodle_auto_format">
<text>Quin és el valor del polinomi $${a}x^2+{b}x+{c}$$ en el punt $$x={x}$$?</text>
    </questiontext>
    <image></image>
    <generalfeedback>
<text></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <shuffleanswers>0</shuffleanswers>
<answer fraction="100">
    <text>{a}*{x}*{x}+{b}*{x}+{c}</text>
    <tolerance>0.01</tolerance>
    <tolerancetype>1</tolerancetype>
    <correctanswerformat>1</correctanswerformat>
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    <feedback><text></text>
</feedback>
</answer>
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</name>
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</distribution>
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</minimum>
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        <dataset_item>
           <number>17</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>21</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>22</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>23</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>24</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>25</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>26</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>27</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>28</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>29</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>30</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>31</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>32</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>33</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>34</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>35</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>36</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>37</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>38</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>39</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>40</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>41</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>42</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>43</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>44</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>45</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>46</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>47</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>48</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>49</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>50</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>51</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>52</number>
           <value>1</value>
        </dataset_item>
        <dataset_item>
           <number>53</number>
           <value>-0</value>
        </dataset_item>
        <dataset_item>
           <number>54</number>
           <value>-6</value>
        </dataset_item>
        <dataset_item>
           <number>55</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>56</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>57</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>58</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>59</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>60</number>
           <value>-4</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>60</number_of_items>
</dataset_definition>
<dataset_definition>
    <status><text>private</text>
</status>
    <name><text>c</text>
</name>
    <type>calculated</type>
    <distribution><text>uniform</text>
</distribution>
    <minimum><text>-10</text>
</minimum>
    <maximum><text>10</text>
</maximum>
    <decimals><text>0</text>
</decimals>
    <itemcount>60</itemcount>
    <dataset_items>
        <dataset_item>
           <number>1</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>2</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>3</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>4</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>5</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>6</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>7</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>8</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>9</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>10</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>11</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>12</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>13</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>14</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>15</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>16</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>17</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>18</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>19</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>20</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>21</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>22</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>23</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>24</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>25</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>26</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>27</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>28</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>29</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>30</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>31</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>32</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>33</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>34</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>35</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>36</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>37</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>38</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>39</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>40</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>41</number>
           <value>8</value>
        </dataset_item>
        <dataset_item>
           <number>42</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>43</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>44</number>
           <value>7</value>
        </dataset_item>
        <dataset_item>
           <number>45</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>46</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>47</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>48</number>
           <value>10</value>
        </dataset_item>
        <dataset_item>
           <number>49</number>
           <value>4</value>
        </dataset_item>
        <dataset_item>
           <number>50</number>
           <value>2</value>
        </dataset_item>
        <dataset_item>
           <number>51</number>
           <value>-3</value>
        </dataset_item>
        <dataset_item>
           <number>52</number>
           <value>9</value>
        </dataset_item>
        <dataset_item>
           <number>53</number>
           <value>-8</value>
        </dataset_item>
        <dataset_item>
           <number>54</number>
           <value>5</value>
        </dataset_item>
        <dataset_item>
           <number>55</number>
           <value>3</value>
        </dataset_item>
        <dataset_item>
           <number>56</number>
           <value>-8</value>
        </dataset_item>
        <dataset_item>
           <number>57</number>
           <value>-1</value>
        </dataset_item>
        <dataset_item>
           <number>58</number>
           <value>-7</value>
        </dataset_item>
        <dataset_item>
           <number>59</number>
           <value>6</value>
        </dataset_item>
        <dataset_item>
           <number>60</number>
           <value>-1</value>
        </dataset_item>
    </dataset_items>
    <number_of_items>60</number_of_items>
</dataset_definition>
</dataset_definitions>
</question>
 </quiz>
