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La primera = s + 500
La segunda = s
Calculamos:
s + 500 + s = 2500
s + s + 500 = 2500
2s + 500 = 2500
2s = 2500 - 500
2s = 2000
s = 2000/2
s = 1000
Reemplazando tenemos que:
s + 500 = 1000 + 500 = 1500
Respuesta.
-Una tiene 1000 €
-Otra tiene 1500 €