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*u-(486)=0 

Step by step solution :

Step  1  :

 1.1     9 = 32

(9)² = (3²)² = 3⁴

Equation at the end of step  1  :

  (0 -  (34 • u)) -  486  = 0 

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   -81u - 486  =   -81 • (u + 6) 

Equation at the end of step  3  :

  -81 • (u + 6)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    -81   =  0

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

Solving a Single Variable Equation :

 4.2      Solve  :    u+6 = 0 

 Subtract  6  from both sides of the equation : 
                      u = -6

One solution was found :