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Rene = r
d + r = 4 000 → ecuacion 1
d - r = 850 → ecuacion 2
-------------------
2d = 4 850
d =
d = 2 425
Daniela aporto 2 450 pesos.
Reemplazando en la ecuacion 1 :
d + r = 4 000
2 450 + r = 4 000
r = 4 000 - 2 450
r = 1 575
Rene aporto 1 575 pesos.