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9x - 2 (x - 4x) = 3x - 2 (3 - x)
9x - 2x + 8x = 3x - 6 + 2x
9x + 8x - 2x = 3x + 2x - 6
17x - 2x = 5x - 6
15x = 5x - 6
15x - 5x = - 6
10x = - 6
x = - 6/10
x = - 3/5
Respuesta.
x = - 3/5
15x=5x=-6
15x-5x=-6
10x=-6
x=-6/10
x=-0.6