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thompsonmark0616
26.07.2020 •
Mathematics
: Resolver el sistema de ecuaciones por el método de reducción. -x + 3y = 6 x + y = 2
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Ответ:
Step-by-step explanation:
El método de reducción también llamado Suma y Resta, consiste en multiplicar una o ambas ecuaciones de tal manera que los coeficientes de una de las incógnitas sean iguales y de signo contrario, de tal forma que se eliminen al sumar las ecuaciones.
Nuestras ecuaciones son:
En este caso podemos observar que x y -x son iguales y de signo contrario así que no tendremos que multiplicar y podemos sumar ambas ecuaciones.
Al sumarlas tenemos que:
Ahora sustituímos el valor que encontramos de y en la segunda ecuación para poder obtener el valor de x.
Por lo tanto, x = 0 y y = 2
Ответ: