Question

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?

Answer 1

Answer:

Each book costed $34.

Step-by-step explanation:

Let the cost of a book be x.

$324-9x=18$

Add 9x to both sides:

$324=18+9x$

Subtract 18 from both sides:

$306=9x$

$9x=306$

Divide both sides by 9:

$x=34$

Each book costed $34.

Answer 2

34 because of inverse operations u subtract 18 from 324 and get 308 and divide that by 9 so it equals 34