ayudaaaaa porfa :( V.- Elimina los signos de agrupación a.- 12 - {5a - (2a + b - 10)} b.-5x + (2x + (3y - {4x + y}]] C.- 76 - 5[3b - 4{b-1}] d.- 6 (2+3) - 2{3-1 - (5-4)}
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