Answer:
x = -1
y = 3
Step-by-step explanation:
Add the two equations together.
You get:
4x = -4
You may notice that there is no y, and that is because the y's cancel out. -y + y = 0, so there's no use in putting y in.
x = -1.
Plugging x in, we get:
-1 - 2y = -7.
Move the -7 over to the left side.
6 = 2y
Therefore, y = 3.
We can check our answer by plugging the values in.
3(-1) + 2(3) is supposed to equal 3.
-3 + 6 = 3, and so we know our answer is correct.
