SOLUTION: Please assist me in solving this system by the addition method. Thank you. x + y = 7 x - y = 9

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Please assist me in solving this system by the addition method. Thank you. x + y = 7 x - y = 9      Log On


   

Question 335242: Please assist me in solving this system by the addition method.
Thank you.

x + y = 7
x - y = 9
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations together.
x%2By%2Bx-y=16
2x=16
highlight%28x=8%29
Now use either equation to solve for y.
8%2By=7
highlight%28y=-1%29