Question: What is the solution to the equation 9x + 1 = 28?

Options:

1. x = 2
2. x = 3
3. x = 4
4. x = 5

Correct Answer: x = 4

Solution:

Step 1: Subtract 1 from both sides: 9x = 27. Step 2: Divide both sides by 9: x = 3.