Question

–3(x + n) = x aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 1

First thing to do is distribute the
`-3`:

`-3(x+n)=x\\-3x+-3n=x`

Now we're gonna solve for
`x`:

`-3x-3n=x\\-4x=3n\\x=-(3n)/(4)`

To solve for
`n`:

`-3x-3n=x\\-3n=4x\\n=-(4x)/(3)`