Solution - Linear equations with one unknown

Step by step solution :

Step  1  :

Pulling out like terms :

 1.1     Pull out like factors :

   28 - 8w  =   -4 • (2w - 7) 

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

 2.1      Solve :    -4   =  0

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

Solving a Single Variable Equation :

 2.2      Solve  :    2w-7 = 0 

 Add  7  to both sides of the equation : 
                      2w = 7
Divide both sides of the equation by 2:
                     w = 7/2 = 3.500

One solution was found :