Solution - Linear equations with one unknown

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  0 -  4 • (x + 1)  = 0 

Step  2  :

Equation at the end of step  2  :

  -4 • (x + 1)  = 0 

Step  3  :

Equations which are never true :

 3.1      Solve :    -4   =  0

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

Solving a Single Variable Equation :

 3.2      Solve  :    x+1 = 0 

 Subtract  1  from both sides of the equation : 
                      x = -1

One solution was found :