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 :

                     9^2*x-(42)=0 

Step by step solution :

Step  1  :

 1.1     9 = 32

(9)² = (3²)² = 3⁴

Equation at the end of step  1  :

  (34 • x) -  42  = 0 

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   81x - 42  =   3 • (27x - 14) 

Equation at the end of step  3  :

  3 • (27x - 14)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    3   =  0

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

Solving a Single Variable Equation :

 4.2      Solve  :    27x-14 = 0 

 Add  14  to both sides of the equation : 
                      27x = 14
Divide both sides of the equation by 27:
                     x = 14/27 = 0.519

One solution was found :