SOLUTION: x+y=8 3x=y

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: x+y=8 3x=y      Log On


   

Question 186595: x+y=8
3x=y
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=8
3x=y
---------
Substitute to get:
x + 3x = 8
4x = 8
x = 2
---------
Substitute into y = 3x to solve for "y":
y = 3*2 = 6
==================
Cheers,
Stan H.