Bonjour
-6(x-4)+3 (4x-5)=-3x +7(2-x)
- 6x + 24 + 12x - 15 = - 3x + 14 - 7x
- 6x + 12x + 3x + 10x = 14 - 24 + 15
19x = 5
x = 5/19
7(x+2)+4 x–5=3 (5— x)+8
7x + 14 + 4x - 5 = 15 - 3x + 8
7x + 4x + 3x = 15 + 8 - 14 + 5
10x = 14
x = 14/10
x = 7/5
x/4 + 2/3 = 7x/6 - 5/3
3x/12 + 8/12 = 14x/12 - 20/12
3x + 8 = 14x - 20
3x - 14x = - 20 - 8
- 11x = - 28
x = 28/11
- 3x/5 - 7/10 = 5x/4 - 1/2
- 12x/20 - 28/20 = 25x/20 - 10/20
- 12x - 28 = 25x - 10
- 12x - 25x = - 10 + 28
- 37x = 17
x = - 17/37.
