Solution - Linear equations with one unknown

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                     12-(f-13-2)=0 

Step by step solution :

Step  1  :

Solving a Single Variable Equation :

 1.1      Solve  :    -f+27 = 0 

 Subtract  27  from both sides of the equation : 
                      -f = -27
Multiply both sides of the equation by (-1) :  f = 27

One solution was found :