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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 , where is not equal to and . Which equation correctly expresses in terms of ?
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Explanation
Choice D is correct. To express in terms of , the given equation must be solved for . Subtracting from both sides of the given equation yields . Since is not equal to , multiplying both sides of this equation by yields . It's given that , which means is not equal to . Therefore, dividing both sides of by yields , or .
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.