Bjr,
5x - 3 = 3x + 8
5x - 3x = 8 + 3
2x = 11
x = 11/2
4x + 18 = 5x - 5
- x = - 23
x = 23
Bonsoir
1)5x-3=3x+8
2)2(2x+9)=5(x-1)
4x - 5x = - 5 - 18
x= 23.
