Algebra-1

Question Analysis
This question tests the ability to solve a square root equation and understand the process of isolating the variable.

Key Concept Explanation
To solve equations involving square roots, isolate the square root term and then square both sides to eliminate the square root. Finally, solve for the variable.

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

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