En resumen

2(m + 2. 5) = 4(m - 0. 5) = 2m + 5 = 4m - 2 = 7 = 2m = m = 7 / 2.

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Cheoleo
10

2(m + 2.

5) = 4(m - 0.

5) = 2m + 5 = 4m - 2 = 7 = 2m = m = 7 / 2.