Well, I am going to answer anyway.
| \(5x-(6-x)\) | Distribute the nagative sign to all terms inside of the parentheses. |
| \(5x-6+x\) | Combine any like terms. |
| \(6x-6\) | That's about all you can do. You can factor out a 6, if you'd like. |
| \(6(x-1)\) | You could also leave it like it was above. |