Sagot :
bonjour
2 x + 11 = 5
2 x = 5 - 11
2 x = - 6
x = - 3
6 x + 8 = 3 x - 19
6 x - 3 x = - 19 - 8
3 x = - 27
x = - 9
Réponse :
2 x + 11 = 5
2 x = 5 - 11
2 x = - 6
x = - 3
6 x + 8 = 3 x - 19
6 x - 3 x = - 19 - 8
3 x = - 27
x = - 9
Explications étape par étape