Solution - Linear equations with one unknown

Step by step solution :

Step  1  :

Pulling out like terms :

 1.1     Pull out like factors :

   -2 - 4p  =   -2 • (2p + 1) 

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

 2.1      Solve :    -2   =  0

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

Solving a Single Variable Equation :

 2.2      Solve  :    2p+1 = 0 

 Subtract  1  from both sides of the equation : 
                      2p = -1
Divide both sides of the equation by 2:
                     p = -1/2 = -0.500

One solution was found :