Réponses

2014-04-26T15:30:18+02:00
Salut :)

b) -6x+4=-1-x.    
-6x + 4 + 6x = -1 - x + 6x
4 = -1 + 5x
4 + 1 = -1 + 5x + 1
5 = 5x
5x/5 = 5/5
x = 1

c)7m+10=m-8

7m + 10 - m = m - 8 - m
6m + 10 = -8
6m + 10 - 10 = -8 - 10
6m = -18
6m/6 = -18/6
m = -3

J'espère t'avoir aidé(e) ! :)