Simply each expression (aside from the answered )
when answering please label them as 1-11

1. 18x-2
2. 40x-80
3. 12x-12
4. 21x
5. 72x-42
6.20x
7. 18-12x
8. 30x+45
9. 34x
10. 48x+3
11. 21x-8