### Home > CC2MN > Chapter 6 Unit 6B > Lesson CC2: 6.2.1 > Problem 6-55

6-55.

When Lakeesha solved the equation

“*Since groups of equals 3 groups of , then I know that each group of must equal .”*

Do you agree with her reasoning? Explain.

Recall the Equation Mat from problem 6-54.

Each group ofcorresponds to each group of . How can the result of Lakeesha’s reasoning be written?

Verify that your answer from problem 6-54 will make the equation you wrote in part (b) true.

Substitute your answer from problem 6-54 into the equation above and see if the equation is true.