Respuestas a un SEL. Método de reducción. Lesson

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1

Respuestas a un SEL. Método de reducción.

2

Reducir por sustracción

$\left[2x+7y=22;\ \ \ 2x+3y=14\right]$

3

$\left(4,2\right)$

4

Reducir por sustracción

$\left[3x-2y=20;\ \ \ 2x-2y=10\right]$

5

$\left(10,5\right)$

6

Reducir por sustracción

$\left[-x+34y=0;\ \ \ 2x+34y=9\right]$

7

$\left(3,\frac{3}{34}\right)$

8

Reducir por adición

$\left[7x-4y=3;\ \ \ 2x+4y=42\right]$

Respuestas a un SEL. Método de reducción.

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