### Home > CC3 > Chapter 2 > Lesson 2.1.3 > Problem 2-31

Write an equation and solve it to find the answer to the question below. Use the 5-D Process to help you write the equation, if needed. Remember to define your variable and to write your answer in a complete sentence.

Susan is buying three different colors of tiles for her kitchen floor. She is buying

Choose a number for the beige tiles.

Add

Multiply the number of beige tiles by

Add the beige, red, and navy-blue tiles together to get the total number of tiles Susan bought. Did your total come out to

Use the eTool below to input the points into the table and graph the results.

Click the link at right for the full version of the eTool: