Algebra-2

Question Analysis
This problem assesses the ability to solve a square root equation by isolating the radical and squaring both sides.

Key Concept Explanation
To eliminate the square root, we need to square both sides of the equation. After squaring, we solve the resulting linear equation.

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

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