Question

What mistake did this student make?

1. The 2nd equation was not rewritten in standard form

2. The 1st equation should have been multiplied by -1

3. x = -1 not 1

4. The are no mistakes in this student's work

Answer 1

The answer is 4) the are no mistakes in this students work

Answer 2

4.

Explanation:

I don't believe there are any mistakes in the students work.

All of the equations ar corect.