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- (17x + 18) + 2 (9 + 8x) = 5 (x + 1) + 7
- 17x - 18 + 18 + 16x = 5x + 5 + 7
- 17x + 16x - 18 + 18 = 5x + 5 + 7
- x = 5x + 12
- x - 5x = 12
- 6x = 12
x = 12/-6
x = - 2
Respuesta.
x = - 2