Bella bought b boxes of cookies to bring to a party. She decides to keep two boxes. Each box contains 18 cookies. She brings 90 cookies to the party. Which equation can be used to find the number of boxes, b, Bella bought? How many boxes did she buy?

Answer 1

The equation that can be used to find the number of boxes, b, Bella bought is:

b - 2 = 90 / 18

Simplifying the equation:

b - 2 = 5

Adding 2 to both sides:

b = 7

Therefore, Bella bought 7 boxes of cookies.