Let x be the cost of one textbook.
The cost of the other textbook is then x + 9.
The sum of the two textbooks is x + (x + 9) = $65 in total.
This equation can be simplified as 2x + 9 = $65.
Write the equations: Two of Julie’s textbooks are a total of $65. The difference in price between the two books is $9. What is the cost of each book
what are the two equations?
1 answer
1 answer