Algebra-1

Question Analysis
This question evaluates the student's ability to solve multi-step equations with variables on both sides. The problem requires combining like terms and using inverse operations to isolate the variable.

Key Concept Explanation
The key concept here is to isolate the variable by performing the same operations on both sides of the equation. This involves subtracting from both sides and then subtracting 15 from both sides to simplify the equation.

Step-by-step Solution
1. Subtract from both sides:
2. Simplify:

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