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that seems wrong to me too, either I lost my math or I don’t see how he went from

   6 ÷ 2 (1 + 2)
to

   (6 * (1 + 2)) / 2


You may reorder factors arbitrarily

  *a /b *c = *a *b /c = /c *b *a  etc.

  so 6 /2 *(...) = 6 *(...) /2.


Right. Silly me. What a weird way of doing it though.




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