Algebra-2

Question Analysis
This problem assesses the ability to solve a square root equation that includes a constant term outside the radical.

Key Concept Explanation
First, isolate the radical by moving the constant term to the other side. Then, square both sides to eliminate the square root and solve the resulting linear equation.

Step-by-step Solution
1. Start with the given equation:
2. Subtract 2 from both sides to isolate the radical:
3. Square both sides to eliminate the square root:
4. Simplify:
5. Add 7 to both sides:

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