# How do you solve x+y=7 and 2x-y=2?

##### 1 Answer

Jan 15, 2017

#### Explanation:

Given:

#{ (x+y=7), (2x-y=2) :}#

Add the two equations to eliminate

#3x=9#

Divide both sides by

#x=3#

Then:

#y = 7-x = 7-3=4#