Question 1

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Aparioneu correctament:

begin mathsize 12px style begin bold style negative 39 times x minus 32 equals negative 39 times x minus 32 end style end style

begin mathsize 12px style begin bold style negative 36 times x minus 28 equals negative 15 times x plus 39 end style end style

begin mathsize 12px style begin bold style negative 21 times x plus 11 equals negative 21 times x plus 17 end style end style

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