11m-(6m-5)=25
Distribute the -
11m-6m+5=25
Subtract
5m+5=25
-5 both sides
5m=20
÷5 both sides
M=4
Hope that helps
If you want to see if the answer is correct plug m into the original
11 (4)-(6 (4)-5)=25
44-(24-5)=25
44-19=25
25=25 answer holds true :)