Final answer:
To solve the equation sqrt(x) - 3 = 12, isolate the square root term and square both sides. The solution is x = 225.
Step-by-step explanation:
The given equation is sqrt(x) - 3 = 12. To find the solution, we can start by isolating the square root term. Add 3 to both sides to get sqrt(x) = 15. To solve for x, we square both sides of the equation. (sqrt(x))^2 = (15)^2. This simplifies to x = 225. Therefore, the solution to the equation is x = 225.