Question

X-2y=-7
-2+2y=2
1.6 metodo de reducion por adicion ​

Answer 1

1) X-2y=-7

X=-7+2

X=-5

X-2y=-7

-5-2=-7

-5-2y=-7

y=2+(-5)

y=-7

2) -2+2y=2

y=-2+4=2

y=2

-2+2y=2

-2+2(2)

-2+4=2