amarbneydjikfall

Réponse:

bonsoir,

1. 3x - 2 = 5x + 6

3x -5x = 6+2

-2x = 8

x = -4

2.

2x = 3/4

8x = 3

x = 3/8

3. 5x/3 = -2

5x = -6

x = -6/5

4. 5x/6= 5/7

35x = 30

x = 30/35

x = 6/7