SOLUTION: 2x+y=12 x-y=3

Question 924540: 2x+y=12
x-y=3
Answer by Sam32399(5) (Show Source): You can put this solution on YOUR website!
Your Question:
2x+y=12
x-y=3
----------------------------------------------------------------------------
solve for x:
x-y=3 becomes x=y+3
----------------------------------------------------------------------------
substitute for x:
2(y+3)+y=12
----------------------------------------------------------------------------
Solve:
2y+6+y=12
3y+6=12
3y=6
y=2
----------------------------------------------------------------------------
substitute for y:
x-(2)=3
x=5
----------------------------------------------------------------------------
x=5 y=2 (5,2)<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Your answer!
----------------------------------------------------------------------------
Good luck with your homework!
Cheers,
Sami
RELATED QUESTIONS
y=-2x-12... (answered by checkley77)

{x-y=-3... (answered by Alan3354)

2x-y=-3... (answered by Fombitz,Boreal)

2x-y=3 x+y=12 (answered by rothauserc,josmiceli)

y=2x x+y=12 (answered by rahman)

y=2x... (answered by tutorcecilia)

y=2x... (answered by stanbon)

2x+y=3... (answered by checkley77)

2x=3-y... (answered by TimothyLamb)