Réponse :
Explications étape par étape
Bonjour
Résoudre :
5x + 7 = 2x - 2
5x - 2x = -2 - 7
3x = -9
x = -9/3
x = -3
3x + 2 = x - 10
3x - x = -10 - 2
2x = -12
x = -12/2
x = -6
2x - 5 = 5x + 1
-5 - 1 = 5x - 2x
-6 = 3x
x = -6/3
x = -2
3 - 7x = 3x + 2
3 - 2 = 3x + 7x
1 = 10x
x = 1/10
5x - 6 = -x + 3
5x + x = 3 + 6
6x = 9
x = 9/6
x = 3/2
2x - 1/3 = 1
2x = 1 + 1/3
2x = 3/3 + 1/3
2x = 4/3
x = 4/3 x 1/2
x = 4/2 x 1/3
x = 2/3
