SOLUTION: y=3x 4x-y=2

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: y=3x 4x-y=2      Log On


   

Question 770158: y=3x
4x-y=2
Found 2 solutions by tommyt3rd, MathLover1:
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
y=3x
4x-y=2
4x-3x=2
x=2
y=3(2)=6

:)

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

y=3x.........eq.1
4x-y=2.......eq.2
___________________________
4x-y=2.......eq.2..plug in y from eq.1
4x-3x=2......solve for x
highlight%28x=2%29
go back to eq.1 and find y
y=3x.........eq.1
y=3%2A2
highlight%28y=6%29

+graph%28600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+3x%2C+4x-2%29+