Bonjour
Résoudre
2x + 3 = 4x - 3
4x - 2x = 3 + 3
2x = 6
x = 6/2
x = 3
-x + 7 = -2x + 1
2x - x = 1 - 7
x = -6
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Bonjour
Résoudre
2x + 3 = 4x - 3
4x - 2x = 3 + 3
2x = 6
x = 6/2
x = 3
-x + 7 = -2x + 1
2x - x = 1 - 7
x = -6