answer:
1. 6a+12
2. 6c-8
3. 9c+7
4. -6c-5
5. 8-20k-8m
6. 6k+2
7. 2p
8. 7y+20
9. 3d-2f
10. 18a+4
11. 31f+6
12. 18k+6m-12
13. 4m
14. 2c
15. 6b+5
16. -2b+8a-1
17. f+3d-2
Hey! i just want to say that it's very easy when you just add variables with other same variable. for example, 2m+m. 2+1=3! and just pop the variable M in there. which equals 3m! super easy! right? hope this helped
