Home > CCA > Chapter A > Lesson A.1.3 > Problem A32
Write an equation to solve the following problem. Write your answer with a complete sentence.
Susan is buying three different colors of tiles for her kitchen floor. She is buying 107 red tiles, and three times as many navy blue tiles as beige tiles. If Susan buys 435 tiles altogether, how many tiles of each color does she buy?
Let b = the number of beige tiles. Your equation should start with “435 =” and use b as the only variable.
Choose a number for the amount of beige tiles.
Beige  Navy  Red  Total  

Multiply the number of beige tiles by 3 to get the number of navyblue tiles.
Add the beige, red, and navyblue tiles together to get the total number of tiles Susan bought.
Did your total come out to 435? If not, try another number for the beige.