Question

Which of the following describes the correct process for solving the equation 3x+6=21 and arrives at the correct solution?

Answer 1

The correct solution is C

Subtract 6 from both sides of the equation
        3x + 6 - 6 = 21 - 6
        3x = 15

Then divide both sides by 3

       $\frac{3x}{3} = \frac{15}{3}$
       
       x = 5