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5x-4=3x-18
5x-3x=-18+4
8x=-14
x=-14/8=-7/4
x=-7/4
(5x - 4)/3 = x - 6
5x - 4 = 3(x - 6)
5x - 4 = 3x - 18
5x - 3x = - 18 + 4
2x = - 14
x = - 14/2
x = - 7
Respuesta.
x = - 7