Question

Crystal bought b boxes of cookies to bring to a party. Each box contains 18 cookies. She decides to keep two boxes for herself. She brings 90 cookies to the party. Which equation can be used to find the number of b boxes Crystal bought?

Answer 1

b - 2 = 90/18

b = 7

Explanation:

Let b be the no. of boxes bought

b - 2 = 90/18

b - 2 = 5

b = 5 + 2

b = 7

Answer 2

18b − 2 = 90 is the equation that can be used to find the number of b boxes Crystal bought.