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Yo => x
Tío => y
(x - 7) + 2 = (y - 7) / 2 ..... (I)
x = (2y / 5) + 5 .................(II)
Reducimos la ecuación (I)
2x - 14 + 4 = y - 7
2x - 10 + 7 = y
2x - 3 = y .........................(III)
Reemplazamos (III) en (II)
x = (2(2x - 3) / 5) + 5
x - 5 = 2(2x - 3) / 5
5x - 25 = 4x - 6
x = 19
Y...
y = 2x - 3
y = 2(19) - 3
y = 35
Respuestas:
Yo = 19
Tío = 35