You can
put this solution on YOUR website!
if f(x)= 2x-3, then compute f(f(f(f(f(f(3))))))
f(3) = 2(3) - 3 = 3
so that means
f(f(3)) = f(3) = 3
and
f(f(f(3))) = f(3) = 3
and
f(f(f(f(3)))) = f(3) = 3
...
and you can reason from there that you'll always get 3.
So the answer is 3.
Edwin
