SOLUTION: The text for biology class cost $15.00 more than twice the cost of a used textbook for colleage algerbra. If the cost of the two books together is $129.00, find the cost of the bio

Algebra ->  Human-and-algebraic-language -> SOLUTION: The text for biology class cost $15.00 more than twice the cost of a used textbook for colleage algerbra. If the cost of the two books together is $129.00, find the cost of the bio      Log On


   

Question 224205: The text for biology class cost $15.00 more than twice the cost of a used textbook for colleage algerbra. If the cost of the two books together is $129.00, find the cost of the biology book.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2x+15+x=129
3x=114
x=$38 algebra
2x+15=$91 biology