Réponses

2012-11-04T14:04:04+01:00

(x-1)-(9x-12x+4)=0

(x-1)-(-3x+4)=0

x-1+3x-4=0

4x-5=0

x=5/4

2012-11-04T14:13:02+01:00

Hello,

 

(x-1) -(9x -12x +4) =0

x - 1 - 9x + 12x - 4 = 0

4x - 5 = 0

4x = 5

x = 5/4


Au plaisir.

Alexis de www.helpomaths.net