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2020 USOJMO Problems/Problem 6

Revision as of 15:02, 25 June 2020 by Iirishabii (talk | contribs) (Created page with "If <math>5x+2=77</math>, prove that <math>x+3</math> is not prime.")
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If $5x+2=77$, prove that $x+3$ is not prime.

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