Question 1

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Per a quin valor de m  les rectes r i s són paral·leles?
r: begin mathsize 12px style fraction numerator begin bold style x plus 1 end style over denominator begin bold style 3 end style end fraction bold equals fraction numerator begin bold style y plus 9 end style over denominator begin bold style negative 3 end style end fraction end style
s: begin mathsize 12px style begin bold style m times x plus 8 times y minus 3 equals 0 end style end style

Format de la resposta: -2/3: enter o fracció simplificada


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