Algebra-1

Question Analysis
This question tests the student's ability to solve an absolute value equation with a linear expression inside the absolute value. The equation implies that can be either 15 or -15.

Key Concept Explanation
The key concept here is that the absolute value of a linear expression is its distance from zero on the number line, and thus, has two solutions: and .

Step-by-step Solution
1. Set up two equations:

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