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Advanced Math
/ Nonlinear equations in one variable and systems of equations in two variables
Difficulty: Medium
The given equation relates the numbers , , and . Which equation correctly expresses in terms of and ?
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Explanation
Choice A is correct. Subtracting from each side of the given equation results in . Dividing each side of this equation by results in .
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.