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*(z-2)-(-3)=0 

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  3 • (z - 2) -  -3  = 0 

Step  2  :

Pulling out like terms :

 2.1      Pull out     3 

Note that  -3 =(-1)• 3 
After pulling out, we are left with :
      3 • ( (-1)  *  (z-2) +( (-1) ))

Equation at the end of step  2  :

  3 • (1 - z)  = 0 

Step  3  :

Equations which are never true :

 3.1      Solve :    3   =  0

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

Solving a Single Variable Equation :

 3.2      Solve  :    -z+1 = 0 

 Subtract  1  from both sides of the equation : 
                      -z = -1
Multiply both sides of the equation by (-1) :  z = 1

One solution was found :