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 :

                     4^2*x-(21)=0 

Step by step solution :

Step  1  :

 1.1     4 = 22

(4)² = (2²)² = 2⁴

Equation at the end of step  1  :

  (24 • x) -  21  = 0 

Step  2  :

Equation at the end of step  2  :

  16x - 21  = 0 

Step  3  :

Solving a Single Variable Equation :

 3.1      Solve  :    16x-21 = 0 

 Add  21  to both sides of the equation : 
                      16x = 21
Divide both sides of the equation by 16:
                     x = 21/16 = 1.312

One solution was found :