Bonjour
- 8x + 12 = x - 15
- 8x - x = - 15 - 12
- 9x = - 27
x = 27/9
x = 3
La solution est : 3.
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Bonjour
- 8x + 12 = x - 15
- 8x - x = - 15 - 12
- 9x = - 27
x = 27/9
x = 3
La solution est : 3.