# How do you solve by substitution #-x + 2y = -6# and #3x + y = 8#?

##### 1 Answer

Apr 29, 2018

#### Explanation:

In the second equation, we can easily solve for

We've already solved for one variable in terms of the other, so we can plug into the first equation. We get

We can subtract

Dividing both sides by

We can plug into our equation for

Hope this helps!