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15x - 10 = 6x - x - 2 - x + 3
15x - 10 = 6x - x - x - 2 + 3
15x - 10 = 6x - 2x - 2 + 3
15x - 10 = 4x + 1
15x - 4x = 1 + 10
11x = 11
x = 11/11
x = 1
Solución :
x = 1