SOLUTION: Two apples and four orange cost is $100, three apples and seven orange cost $164. so what is cost of one orange?

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Question 997834: Two apples and four orange cost is $100, three apples and seven orange cost $164. so what is cost of one orange?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call their costs x and y respectively.
2x + 4y = 100
3x + 7y = 164
We are solving for y, so eliminate x...multiply the top equation by 3/2 and subtract it from the second equation and get
3x + 7y = 164
-(3x + 6y = 150)
y = 14 dollars (that must be a really fine orange.)