Question

Mona solved an equation incorrectly, as shown below:

Step 1: 5x = 30
Step 2: x = 30 − 5
Step 3: x = 25

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

She did not add 5 to 30.
She did not divide 30 by 5.
She did not multiply 30 by 5.
She did not multiply 30 five times.

Answer 1

She did not add 5 to 30. ... Mona subtracted 5 where she should have divided 5.

Explanation:

Answer 2

B. She did not divide 30 by 5

Explanation:

This is the only way to cancel out the 5 and get the variable alone