If N = $$\frac{K}{T+ \frac{x}{y}}$$ ,Where T= $$\frac{K}{5}$$ and X=5- T,which of the following expresses y in terms of N and T?
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A $$\frac{N(5-T)}{T(5-N)}$$
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B $$\frac{N(T-5)}{T(5-N)}$$
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C $$\frac{5-T}{T(5-N)}$$
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D $$\frac{5N(5-T)}{T(1-5N)}$$
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E $$\frac{N(5-T)}{5}$$
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正确答案: A