hello!
Use the distributive property:-
-(2m+5k) = -2m-5k
Let's simplify this expression by combining like terms:-
The like terms are:-
3k, -5k
and
-2m, -m
Combine Like terms:-
3k-5k=-2k
-2m-m=-3m
Hence, we have:-
note:-
Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)