What is the answer of 3x-3=12

x=5

Step-by-step explanation:

Pull out like factors :

  3x - 15  =   3 • (x - 5)

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

2.2      Solve  :    x-5 = 0

Add  5  to both sides of the equation :

                     x = 5

One solution was found :

                  x = 5