Okay, the top answer to this turns out to be incredibly interesting: https://www.quora.com/How-do-you-find-the-integer-solutions-to-frac-x-y+z-+-frac-y-z+x-+-frac-z-x+y-4 …pic.twitter.com/Pl8wFfgOfy
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Really great, clear math writing. I love stuff like that
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