When Lakeesha solved the equation
Do you agree with her reasoning? Explain.
Recall the Equation Mat from problem 7-54.
Each group of
corresponds to each group of .
How can the result of Lakeesha’s reasoning be written?
Verify that your answer from problem 7-54 will make the equation you wrote in part (b) true.
Substitute your answer from problem 7-54 into the equation above and see if the equation is true.