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 :

                189-(-6*x+3*(-7*x-18))=0 

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

 2.1     Pull out like factors :

   -7x - 18  =   -1 • (7x + 18) 

Equation at the end of step  2  :

  189 -  (-6x +  -3 • (7x + 18))  = 0 

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   27x + 243  =   27 • (x + 9) 

Equation at the end of step  4  :

  27 • (x + 9)  = 0 

Step  5  :

Equations which are never true :

 5.1      Solve :    27   =  0

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

Solving a Single Variable Equation :

 5.2      Solve  :    x+9 = 0 

 Subtract  9  from both sides of the equation : 
                      x = -9

One solution was found :