9. (57)
10. 12/7 OR 1.714285
11. 207
12. 8
13. 7/2 OR 3.5
14. -15/16 OR -0.9375
15. 12x - 7
16. -9m - 25
17. -9w + 56
18. 12x - 8y
19. -5a + 15b
20. -11xy +8x -6
IF YOU NEED THE WORK FOR ANY FEEL FREE TO ASK BUT ALL I DID WAS PLUG IN VALUES AND/OR DISTRIBUTE
hope this helps you :)
