Mathematics, 22.04.2021 21:10 angie249

Si al restarle el triple de la edad que mi hermana tenia hace 4 años del triple de la edad que ella tendrá dentro de 4 años, se obtiene como resultado el doble de su edad. Que edad tiene mi hermana?

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Si al restarle el triple de la edad que mi hermana tenia hace 4 años del triple de la edad que ella...

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