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8x - 2x + 3 + x - 6
Reduciendo términos semejantes
7x - 3
8x - (2x- 3) - (-x + 6) = 7x - 3
Para quitar parentesis aplicas ley de signos
+ por + = +
- por - = +
+ por - = -
- por + = -
8x - (2x - 3) - ( - x + 6) =
8x - 2x + 3 + x - 6 =
9x - 2x - 3 =
7x - 3
Respuesta.
7x - 3