[Solved] 20. Prove that if n is an integer and 3n+

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20. Prove that if n is an integer and 3n+2 is even, then n is even using a) a proof by contraposition. b) a proof

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20. Prove that if n is an integer and 3n+2 is even, then n is even using a) a proof by contraposition. b) a proof by contradiction

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