### ecuación 15

Razones y proporciones

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0

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0

### ecuación 13

Sistema de 3 variables. ¿Es necesario plantear como sistema?

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### ecuación 12

Sistema de ecuaciones con dos variables

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0

### ecuación 11

sistema de Ecuaciones con dos variables. Intuitiva.

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0

### ecuación 10

Sistema de tres variables en que es simple obtener la suma, pero que exige proceso para identificar cada valor

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0

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### Equotions 1

Solve both equotions to use the results on final fractions' sum.

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