Solution - Linear equations with one unknown

Step by step solution :

Step  1  :

Pulling out like terms :

 1.1     Pull out like factors :

   21t - 7  =   7 • (3t - 1) 

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

 2.1      Solve :    7   =  0

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

Solving a Single Variable Equation :

 2.2      Solve  :    3t-1 = 0 

 Add  1  to both sides of the equation : 
                      3t = 1
Divide both sides of the equation by 3:
                     t = 1/3 = 0.333

One solution was found :