Kate solved an equation incorrectly, as shown below:

Step 1: 9x = 72

Step 2: x = 72 - 9

Step 3: x = 63

Which statement best explains why Step 2 is incorrect in Kate's solution?

A. She did not multiply 72 nine times.

B. She did not multiply 72 by 9.

C. She did not add 9 to 72.

D. She did not divide 72 by 9.

Question

29 December, 16:28

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Answers (1)

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Valerie Young · Answer 1

D, because to get x to be alone you need to divide 72 by 9.

Kate solved an equation incorrectly, as shown below:Step 1: 9x = 72Step 2: x = 72 - 9Step 3: x = 63Which statement best explains why Step 2 is incorrect in Kate's solution?A. She did not multiply 72 nine times.B. She did not multiply 72 by 9.C. She did not add 9 to 72.D. She did not divide 72 by 9.