SOLUTION: Solve the following system of equations for the unknown variables. x + y = 12 x – y = –2

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve the following system of equations for the unknown variables. x + y = 12 x – y = –2      Log On


   



Question 328853: Solve the following system of equations for the unknown variables.
x + y = 12
x – y = –2

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations to eliminate y.
x%2By%2Bx-y=12-2
2x=10
x=5
THen use either equation to solve for y.
5%2By=12
y=-7