Mathematics, 27.04.2021 19:00 lwaites18

Calcular las edades de Marcos, Betiana y Sabrina sabiendo que la edad de Sabrina es un tercio de la edad de Betiana más Marcos. La edad de Betiana más la de Sabrina es igual a la edad de Marcos menos 18 y entre los tres suman 72 años.

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Calcular las edades de Marcos, Betiana y Sabrina sabiendo que la edad de Sabrina es un tercio de la...

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