5x - (12 + 4x) - 3 = - 6 + 9 - 28 - ( - 2x) - ( - 5 + 3x) = 12 - (7 - 2 + 2x)6x - ( - 3 + 4x) - (5 - 7) = - 10 - ( - x + 7)5(x - 2m) = 5 - 10mAlguien puede resolverme esto?

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