Question

7th grade math help me pleasee

Answer 1

He is incorrect. This is because the expression he has right now is x+2=5, making x=3. So if he adds 2 to the right then it's wrong because it would be 3=7.

Explanation:

Answer 2

No

Explanation:

I don't think that's how those specifc diagrams work. X in this case would be 3 not seven.

Yes you can move the x and the 1s but it would break the whole diagram. It would just be an (expression/term). Not a full diagram.

You said this was 7th grade math? Wow. I learned this in 5th grade!