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 :

                     4*(3-k)-(-16)=0 

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  4 • (3 - k) -  -16  = 0 

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   28 - 4k  =   -4 • (k - 7) 

Equation at the end of step  3  :

  -4 • (k - 7)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    -4   =  0

This equation has no solution.
A a non-zero constant never equals zero.

Solving a Single Variable Equation :

 4.2      Solve  :    k-7 = 0 

 Add  7  to both sides of the equation : 
                      k = 7

One solution was found :