SOLUTION: x+9y=79 -7x+9y=23

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: x+9y=79 -7x+9y=23      Log On


   



Question 261759: x+9y=79
-7x+9y=23

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
subtract second equation from first
8x=56
x=7
7+9y=79
9y=72
y=8
(7,8)