What is the solution to m+(-13)=-18

Question

A.M=28
B.M=5
C.M=-5
D.M=-28

Answer 1

m + (-13) = -18

m -13 = -18

m = -5

Answer 2

3.) What is the solution to -33+m=10?
4.) what is the inverse to 38
5.) What is the solution to y+7=-9