# How do you solve the following system?: #x + 3y = -3 , y=-x + 12 #

##### 1 Answer

Mar 22, 2018

#### Answer:

#### Explanation:

we can substitute the value of y of the second equation in the first equation so we get,

On simplification

We get that

Substituting it in either of the initial equations and solving for y, we get

So the solution to the given pair of equations is