Question

Help pls I need this asap!!!!

Answer 1

Answer: B (x + 0 = 1)

Explanation:

Let's start with what we know:

-9x + y = 10 and

10x - y = -9

Luckily we have everything lined up for us.

-9x + 10x = 1x

y + (-y) = 0

10 + (-9) = 1

So when putting these terms together

1x + 0 = 1 or

x + 0 = 1.