Answer:
f=1
Explanation:
first, we gather all of the f's, and numbers into seperate sides
in result we would get -f+3f+4f=8-2
we can think of this as:
-1+3+4=8-2 then add the f's later
in result we get
6f=6
we divide both sides by 6
and we get f=1 :)