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 :

                     -5*(-2*x-5)-x-1-(-12)=0 

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

 2.1     Pull out like factors :

   -2x - 5  =   -1 • (2x + 5) 

Equation at the end of step  2  :

  (((0 -  -5 • (2x + 5)) -  x) -  1) -  -12  = 0 

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   9x + 36  =   9 • (x + 4) 

Equation at the end of step  4  :

  9 • (x + 4)  = 0 

Step  5  :

Equations which are never true :

 5.1      Solve :    9   =  0

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

Solving a Single Variable Equation :

 5.2      Solve  :    x+4 = 0 

 Subtract  4  from both sides of the equation : 
                      x = -4

One solution was found :