### Home > MC2 > Chapter 6 > Lesson 6.2.2 > Problem 6-90

6-90.

When Lakeesha solved the equation **reasoned** this way:

*"Since groups of*

*equals* groups of , then I know that each group of

*must equal* ."

Do you agree with her

**reasoning**? Explain.

Recall the Equation Mat from problem 6-89.

Each group ofcorresponds to each group of . How can the result of Lakeesha's

**reasoning**be written?Verify that your answer from problem 6-89 will make the equation you wrote in part (b) true.

Substitute your answer from problem 6-89 into the equation above and see if the equation is true.