To solve the equation 3x - 3 = 18, you need to isolate the variable x on one side of the equation. Here's how you can do it step by step:
1. Start with the equation: 3x - 3 = 18.
2. Begin by adding 3 to both sides of the equation to get rid of the -3 on the left side: 3x - 3 + 3 = 18 + 3.
Simplifying gives: 3x = 21.
3. To solve for x, divide both sides of the equation by 3: (3x)/3 = 21/3.
This simplifies to: x = 7.
So, the solution to the equation 3x - 3 = 18 is x = 7.
Looking at the answer choices you provided, none of them match the solution obtained by solving the equation correctly. Therefore, none of the given options (A, B, C, D) are the correct solution for this equation.