Clarence solved the equation 3x + 15 = 33 and showed the following work. Did he do the work correctly?

3x + 15 = 33

3x + 15 - 15 = 33

3x = 33

=

x = 11

Which of the following is true?

x is 11.

x should be 6.

x should be 16.

x should be 99.

Looking through the solution he made. The second step seem to be erroneous. Clarence did not subtract 15 on the right side. It should be done as follows:

3x + 15 = 33

3x + 15 - 15 = 33 - 15

3x = 18

x = 6

Therefore, from the choices the correct answer is the second option, x should be 6.