Sara had 324 dollars to spend on 9 books. after buying them she had 18 dollars. how much did each book cost? what is the equation?

Each book costed $34.

Step-by-step explanation:

Let the cost of a book be x.

Add 9x to both sides:

Subtract 18 from both sides:

Divide both sides by 9:

Each book costed $34.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

ummm seems that u didnt post the attachement !