You can put this solution on YOUR website! Assuming that you are solving for m, this is what you should do.
-7+10=m-5
first, you simplify the left side of the equation
3=m-5
then you add five to both sides of the equation
8=m
The answer is m=8
CHECK:
plug in 8 as m
-7+10=8-5
3=8-5
3=3