Algebra-1

Question Analysis
This question tests the student's ability to solve a linear equation step-by-step. The problem provides an equation and guides the student through the process of solving it.

Key Concept Explanation
Solving an equation involves isolating the variable on one side of the equation. This is done by performing the same operations on both sides of the equation.

Step-by-step Solution
1. Start with the equation:
2. Add 9 to both sides:
3. Simplify:

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