Sagot :
Réponse :
bonjour
5 x - 6 = - x + 3
5 x + x = 3 + 6
6 x = 9
x = 9/6 = 3 /2
2 x - 1/3 = 1
6 x /3 = 3/3 + 1 /3
6 x = 4
x = 4/6 = 2/3
4 x + 8 = x - 1
4 x - x = - 1 - 8
3 x = - 9
x = - 3
5 y + 1 = 3 y - 3 - 2
5 y - 3 y = - 5 - 1
2 y = - 6
y = - 3
3 n - 1 = 2 n + 2
3 n - 2 n = 2 + 1
n = 3
4 a + 4 - 5 = 6 a + 5
4 a - 6 a = 5 - 4 + 5
- 2 a = 6
a = - 3
Explications étape par étape :