Question

X + 2y = 10

Answer 1

Let's multiply the first equation by -2 so that we can eliminate y.

-2x-4y=-20

3x+4y=8

X=-12

Since X is -12, let's plug it in to the equation to check.

-12+2y=10

2y=22; let's divide

y=11

So, D (-12,11)