Solution - Linear equations with one unknown

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  15 • (b - 5)  = 0 

Step  2  :

Equations which are never true :

 2.1      Solve :    15   =  0

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

Solving a Single Variable Equation :

 2.2      Solve  :    b-5 = 0 

 Add  5  to both sides of the equation : 
                      b = 5

One solution was found :