# How do solve the following linear system?: # 5x+2y=4 , y=-3x+4 #?

##### 1 Answer

Mar 11, 2018

#### Answer:

#### Explanation:

Since the second function already has the y term isolated, plug it in for y in the first function to solve for x

Now that you found the x variable, plug it into either equation to find y

Check your answer by plugging it back into either of the original equations

This is how you solve by substitution