# How do solve the following linear system?: # 1/3x + 3y = 9 , 8x + 3y= -9 #?

##### 1 Answer

Dec 26, 2015

You can solve it either using substitution or elimination, but the following proof will use substitution.

#### Explanation:

3y = 9 -

y = 3 -

8x + 3(3 -

8x + 9 -

23 = -54x

8(

The solution set is (