Respuesta:
40 en 2 pedasos x e y x+y=40 , x=7+2y x-2y=7
x+y=40 y=11 x=29
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Respuesta:
40 en 2 pedasos x e y x+y=40 , x=7+2y x-2y=7
x+y=40 y=11 x=29