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Let x and y be positive integers such that when y is divided by x, the remainder is 4, and when y+10 is divided by x, the remainder is 2. Which of the following must be an integer?
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A$$\frac{2y+4}{x}$$
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B$$\frac{3y+4}{x}$$
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C$$\frac{5y+6}{x}$$
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D$$\frac{2x+4}{y}$$
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E$$\frac{5x+6}{y}$$
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