Answer:
2b - 8
Explanation:
break it down so it is 5(b+2)
5b+10
-3(b+6)
-3b +-18
and the answer will come to 5b+10-3b+ -18
then 5b - 3b is 2b
and 10-18 is -8
so the answer is 2b - 8
if you think any of this is wrong dont report just comment and i will try and fix the problem
hope this helps :)