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Edad Pablo = x
Edad Manuel = x/2
Edad de Jose = 3(x/2) = 3x/2
Edad de Felipe = 2(3x/2) = 6x/2
x +x/2 + 3x/2 + 6x/2 = 108
2x/2 + x/2 + 3x/2 + 6x/2 = 108
(2x + x + 3x + 6x)/2 = 108
12x/2 = 108
12x = 108 * 2
x = 216/12
x = 18
Edad Pablo = 18 años
Edad Manuel = x/2 = 18/2 = 9 años
Edad Jose = 3x/2 = 3(18)/2 = 54/2 = 27 años
Edad Felipe = 6x/2 = 6*18/2 = 108/2 = 54 años