Réponses

2012-09-22T12:26:29+02:00

7(x-2)+4(x+3)=0

7x-14+4x+12 = 0

11x - 2 = 0

x = 2/11

 

3(x-4)=7(2x-1)

3x - 12 = 14x - 7

14x - 3x = -12 + 7

11x = -5

x = -5/11

 

En espérant t'avoir aidé.