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 :

                     2^3*a-(142)=0 

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  (23 • a) -  142  = 0 

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   8a - 142  =   2 • (4a - 71) 

Equation at the end of step  3  :

  2 • (4a - 71)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    2   =  0

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

Solving a Single Variable Equation :

 4.2      Solve  :    4a-71 = 0 

 Add  71  to both sides of the equation : 
                      4a = 71
Divide both sides of the equation by 4:
                     a = 71/4 = 17.750

One solution was found :