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Advanced Math
/ Nonlinear equations in one variable and systems of equations in two variables
Difficulty: Easy
What is one possible solution to the given equation?
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Explanation
The correct answer is or . By the definition of absolute value, if , then or . Adding to both sides of the first equation yields . Adding to both sides of the second equation yields . Thus, the given equation has two possible solutions, and . Note that 15 and -5 are examples of ways to enter a correct answer.