Question

How do you solve `1- 3n = - 7- n`?

Answer 1

`n=4`

Explanation:

Very simple. Just rearrange the equation.

`1-3n=-7-n`

Bring `-7` to the left and take `-3n` to the right.

`1+7=3n-n`

`8=2n`

`4=n` or `n=4`