Réponse :
bonjour
3 - x = - 8
- x = - 8 - 3
- x = - 11
x = 11
- 2 x + 3 = 7
- 2 x = 7 - 3
- 2 x = 4
x = - 2
13 + 3 x /2 = 1
26 /2 + 3 x /2 = 2 /2
3 x = 2 - 26
3 x = - 24
x = - 8
x - 3 /5 = 3 /8
40 x / 40 - 24/40 = 24 /40
40 x = 24 + 24
40 x = 48
x = 48/40 = 6/ 5
Explications étape par étape
