Home > MC2 > Chapter 6 > Lesson 6.2.2 > Problem 6-90
6-90.
When Lakeesha solved the equation
"Since
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.