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A) Al triple de un número le restamos 9 y se obtiene 30, ¿cuál es ese número?
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A) Al triple de un número le restamos 9 y se obtiene 30, ¿cuál es ese número?

User Andrew Kirna
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El numero es 13 porque 13x3= 39 y 39-9= 30.
User Tshering
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