# How do you solve the following linear system: # 3y-15=x , y-3=-2x #?

##### 1 Answer

May 30, 2018

#### Explanation:

We have

1)

2)

We can use substitution, i.e. insert

Here we have another way which is basically as simple, since we have

3) from 1):

From 2):

Add 3) and 2 to get rid of the x terms:

4)

This gives

Check:

2)Left side:

Right side: