
Katherine P. answered 03/19/13
Positive, Effective, and Experienced Math Tutor
1. Rearrange the terms, grouping like terms
5m - 2m +3k + 5k
2. Combine like terms:
(5 - 2)m + (3 + 5)k (apply the distributive property)
3m + 8k
And you're done! :)