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Advanced Math
/ Nonlinear equations in one variable and systems of equations in two variables
Difficulty: Easy
What is the positive solution to the given equation?
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Explanation
Choice A is correct. The given absolute value equation can be rewritten as two linear equations: and , or . Subtracting from both sides of the equation yields . Subtracting from both sides of the equation yields . Thus, the given equation has two possible solutions, and . Therefore, the positive solution to the given equation is .
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.