Réponse :
Bonjour
Explications étape par étape
2x + 5 = 5x - 4
5 + 4 = 5x - 2x
9 = 3x
x = 9/3
x = 3
3x - 8 = -8x + 2
3x + 8x = 8 + 2
11x = 10
x = 10/11
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Réponse :
Bonjour
Explications étape par étape
2x + 5 = 5x - 4
5 + 4 = 5x - 2x
9 = 3x
x = 9/3
x = 3
3x - 8 = -8x + 2
3x + 8x = 8 + 2
11x = 10
x = 10/11