stp aide moi 4x+2=x+11.....    3x-7=-2x-9....   -5/7x=2/3...   2(x-3)+(x-1)=2x-3

bonsoir

4 x + 2 = x +11
4 x - x = 11 - 2
3 x = 9
x = 3

3 x - 7 = - 2 x - 9
3 x + 2 x = - 9 + 7
5 x = - 2
x = - 2/5

- 5/7 x = 2/3
- 15/21 x = 14/21
- 15 x = 14
x = - 14/15

2x - 6 + x - 1 = 2 x -3
2 x + x - 2 x = - 3 + 6 + 1
x = 4

4x + 2 = x + 11
4x - x = 11 - 2
3x = 9
x = 9/3
x = 3

3x - 7 = - 2x - 9
3x + 2x = - 9 + 7
5x = - 2
x = - 2/5
x = - 0,4

- 5/7x = 2/3
- 15/21x = 14/21
- 15x = 14
x = - 14/15

2 (x - 3) + (x - 1) = 2x - 3
2x - 6 + x - 1 = 2x - 3
2x - 2x + x = - 3 + 6 + 1
x = 4