SOLUTION: Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? How much is a pencil?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? How much is a pencil?      Log On


   

Question 1109118: Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? How much is a pencil?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
pen=x
pencil=y
3x+4y=4.25
2x+6y=4.50
-6x-8y=-8.50
6x+18y=13.50
10y=5.00
y=$0.50 pencil
x=$0.75 pen