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 :

                     3*(x-1)-(2*x+9)=0 

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  3 • (x - 1) -  (2x + 9)  = 0 

Step  2  :

Equation at the end of step  2  :

  x - 12  = 0 

Step  3  :

Solving a Single Variable Equation :

 3.1      Solve  :    x-12 = 0 

 Add  12  to both sides of the equation : 
                      x = 12

One solution was found :