# How do you solve #x + y = -7# and #3x + y = -9#?

##### 1 Answer

#### Answer:

#### Explanation:

You could solve this system of equations by using the multiplication method.

To do that, start by multiplying both sides of the *first equation* by

The system of equations will now be

Next, add left sides and the right sides of the two equations *separately* to eliminate the terms that contain

Divide both sides of the equation by

Now that you know the value of

This is equivalent to

Now divide both sides of this equation by

The two solutions are