Hello!
Answer:
![\boxed{f=1}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/q57jju38hqb41b2c8k4c5924reeaysa7te.png)
The answer should have positive sign.
Explanation:
First, you subtract by 5 from both sides of an equation.
![5+6f-5=11-5](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ghdndam8ob0zd4bse86bl97m763u7llma1.png)
Then, simplify and subtract by the numbers from left to right.
![11-5=6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/lcmg1ip1jj1rduzhm72hui49lnx3uwwer2.png)
![6f=6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/5ubih8jtwjf9alq0cyi40cq4vjdnft9x25.png)
You divide by 6 from both sides of an equation.
![(6f)/(6)=(6)/(6)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/sxk3ab8qkupsj56dha8mupk13qx49g3ide.png)
Finally, divide numbers from left to right.
![6/ 6=1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/z555bjzzi4wgvxmxxeqnojxdivs4noefa4.png)
, which is our correct answer.
Hope this helps you!
Have a nice day! :)
-Charlie
Thank you so much!