La tercera parte del doble de un número más 7, equivale a la mitad del triple del número menos 4
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planteando.
(2x/3)+7 = (3x/2)-4
11 = 3x/2 -2x/3
11 = (9x - 4x)6
66 = 5x
66/5 = x
13.2 = x
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