leshayk91
03.09.2020 •
Mathematics
- у
6x - 4у - 2
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Ответ:
To solve your equation using the Equation Solver, type in your equation like x+4=5. The solver will then show you the steps to help you learn how to solve it on your own.
Step-by-step explanation:
Ответ:
Perico Pérez tuvo 2 años hará 5 años y 4 años hará 3 años.
Step-by-step explanation:
Hemos de tener en mente que la mejor estrategia para resolver estos problemas algebraicos consiste en traducir en lenguaje matemático cada oración para resolver el sistema de ecuaciones resultante:
Hace 3 años la edad de Perico Pérez era el doble de la edad que tenía hace 5 años:
Aquí existen dos variables:
- Edad de Perico Pérez hará 3 años, 
- Edad de Perico Pérez hará 5 años.
También sabemos que entre ambas edades existe una diferencia de dos años, entonces:
Lo cual permite una solución única. Si sustituimos en (Eq. 1) por (Eq. 2) tenemos que:
Por (Eq. 1), encontramos que la edad de Perico Pérez hará 3 años fue:
Perico Pérez tuvo 2 años hará 5 años y 4 años hará 3 años.