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
