Maths Olympiad Prep

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CEMC Pascal, 2003

Algebra Difficulty 1.0 Junior Find the answer Canada

If xx and yy are positive integers and x+y=5x + y = 5, then a possible value for 2x−y2x - y is

(A) 33 (B) −3-3 (C) 22 (D) −2-2 (E) 00

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