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FUNCION 1. X+Y=152
FUNCION 2. Y=X+22
FUNCION 3. X+(X+22)=152
2X=152-22
2X=130
X=130/2
X=65
Reemplazamos en la Funcion 2
Y=X+22--- Y=(65+22) = 87
comprobamos.-
65+87=152
2X+22=152
2X=152-22
2X=130
X=130/2
X=65
José aporto 87 pesos, y su hermano 65
87+65=152