Hello,
The answer is "x=4.5 or 5".
Reason:
Write the equation:
4f+11=29
Subtract 11 on both sides:
29-11=18
4f=18
Now divide 18 by 4:
18/4=4.5 (rounded to the whole number)
f=5
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit