SOLUTION: if y=2x and y=6-x then x= ?

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: if y=2x and y=6-x then x= ?      Log On


   



Question 973309: if y=2x and y=6-x then x= ?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
y=2x Use this to substitute for y in other equation
y=6-x Substitute from above.
2x=6-x
3x=6
x=2