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 :

                     -9*(t-2)-(4*(t-15))=0 

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  (0 -  (9 • (t - 2))) -  4 • (t - 15)  = 0 

Step  2  :

Equation at the end of step  2  :

  (0 -  9 • (t - 2)) -  4 • (t - 15)  = 0 

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   78 - 13t  =   -13 • (t - 6) 

Equation at the end of step  4  :

  -13 • (t - 6)  = 0 

Step  5  :

Equations which are never true :

 5.1      Solve :    -13   =  0

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

Solving a Single Variable Equation :

 5.2      Solve  :    t-6 = 0 

 Add  6  to both sides of the equation : 
                      t = 6

One solution was found :