A
B
C
D
Explanation
Correct answer: B.
Choice B is correct. Subtracting from each side of the given equation yields . Multiplying each side of this equation by yields . Thus, the solution to the given equation is .
Why the other choices are wrong
Choice A
Choice A is incorrect and may result from conceptual or calculation errors.
Choice C
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D
Choice D is incorrect and may result from conceptual or calculation errors.