SOLUTION: Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost?

Algebra ->  Human-and-algebraic-language -> SOLUTION: Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost?      Log On


   

Question 905912: Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost?
Found 2 solutions by artemia , richwmiller:
Answer by artemia (1) About Me  (Show Source):
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
This questions is duplicate but the answer given was wrong.
2a+1o=72
1a+2o=63
multiply #2 by 2
2a+4o=126
multiply #1 by -1
2a+4o=126
-2a-1o=-72
add
3o=54
o=18
One orange costs 18 cents