Question

Jillian has made an error. In which step does it occur?

Step 1
Step 2
Step 3
Step 4

Answer 1

Step 4.

Explanation:

She circles the two that should cancel out, leaving the answer to be 5, but she writes 2 as the two that canceled out. She just confused which part was the answer, it is the ones left over not the ones you take away.