Question

I got a positive 13 instead of a -13 which is the correct answer. What did i do wrong?

Answer 1

You seemed to have forgotten the negative in front of the
`n`

Explanation:

You seemed to have forgotten the negative in front of the
`n\\`

`-13-n=0`

Move negative thirteen to the other side

`-n=13`

Divide by negative one

`n=-13`

Answer 2

The answer is -13

After you add the -13 to both sides, you end up with:

-n = 13

When you rewrote the problem, you got rid of the negative sign on the n variable, making it positive. If you kept the negative sign, you end up with -13 as a final result because you need to find n, not negative n.

Thus,

n = -13

Summary:

Your mistake was that you got rid of the negative sign on the n, changing the problem's answer.

:)