15x + 2 = 13x -8
15x - 13x = -8
2x = 10
2x - 7 = 5x + 14
2x - 5x = 14 +7
-3x = 21
3x - 4 = x + 7
3x - x 7 + 4
2x = 11
X =11 / 2
x + 6 = 4x - 10
x - 4x = -10 - 6
-3x = -16
x = 16/3
7 - 2x = 3x - 3
-2x - 3x = - 3 - 7
-5x = - 10
15 + 6x = - 8x + 1
6x + 8x = 1 - 15
14x = - 14
x = - 1
4 - x = 3x - 9
-x - 3 = - 9 - 4
- 4x = - 13
x = 13/4
- 3x + 2 = - 5x + 8
-3x + 5x = 8 - 2
2x = 6
x = 3
-5x + 3 = 2x + 3
-5x = 2x
-5x - 2x = 0
-7x =0
x = 0
4x - 1 = 7x - 4
4x - 7x = - 4 + 1
-3x = - 3
x = 1
Voilà pour vous j’espère que ça vous aidera
