Respuesta:
Explicación paso a paso:
2b + { b - (a + b) }
2b + { b - a - b }
2b + { b - b - a }
2b + { - a }
2b - a
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Verified answer
Respuesta:
Explicación paso a paso:
2b + { b - (a + b) }
2b + { b - a - b }
2b + { b - b - a }
2b + { - a }
2b - a