bonjour
x / 3 + 3 = x /6 + 5 /2
2 x /6 + 18/6 = x /6 + 15/6
2 x - x = 15 - 18
x = - 3
x /2 + 4 = 6
x /2 + 8/2 = 12 /2
x = 12 - 8
x = 4
x / 8+ 4 = x /4 - 3 /2
x /8 + 32/8 = 2 x / 8 - 12/8
x - 2 x = - 12 - 32
- x = - 44
x = 44
3 x + 4 /5 = x /10 - 6
30 x / 10 + 8 /10 = x / 10 - 60/10
30 x - x = - 60 - 8
29 x = - 68
x = - 68/29