# How do you solve y = 2x + 9 and 2x - y = -9?

##### 1 Answer

Nov 7, 2015

#### Answer:

There are infinite possible solutions because the equations are the same.

#### Explanation:

You have the equations:

Let's try to play around with the second one...

You get the same equation as the first one!

If you plot those into the same coordinate system, you see that there are an infinite amount of possible solves.