Réponses

2012-11-09T16:36:59+01:00

5-6x=8

6x=8-5

6x=3

6x/6=3/6

x=0.5

 

-4x+7=-8x+10

-4x=-8x+10-7

-4x=-8x+3

-4x+8x=3

4x=3

4x/4=3/4

x=0.75