Answer:
if you are asking (2m - 10m + 5) + (8m +2), the answer would end up just being 7.
Step-by-step explanation:
simplify, 2m-10m = -8m.
5 + 2 = 7
-8m + 8m = (they cross each other out. you can't have a 0m)
Your Answer = 7