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c + 2b = 15
a = 3
a + b = 7
(3) + b = 7
b = 7 - 3
b = 4
c + 2b = 15
c + 2(4) = 15
c = 15 - 8
c = 7
2(a + c) + 3(b) =
2(3 + 7) + 3(4) =
2(10) + 12 =
20 + 12 = 32
La respuesta es el literal b)
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