Michael D. answered 06/18/19
Versatile STEM tutor eager to teach
Is that the full question, typed exactly how you were given it? With the reference to capitalized letters, I'm not sure if I'm missing something...
If I am not missing anything, you just do the following:
Add 'h' to both sides
m = fa - h
m + h = fa
then divide both sides by 'f'
m + h = fa
(m + h) / f = a