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UKMT Senior Mathematical Challenge, 2025

Algebra Difficulty 2.0 Junior Find the answer United Kingdom

When 1x−1y=2025\frac{1}{x} - \frac{1}{y} = 2025, what is the value of x+2026xy−y2y−2025xy−2x\frac{x+2026xy-y}{2y-2025xy-2x}?

(A) 00 (B) 11 (C) 12\frac{1}{2} (D) 20262026 (E) 12025\frac{1}{2025}

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