tidy ~ janet (@tidest)

@gamer @aperture @link the way it's written leaves ambiguous traces in how it should be interpreted in the order of operations
four would be correct if the upper part of the division was in parentheses, but it's not
so
it's ambiguous if you should mul -> div -> sub or mul -> sub -> div
unless the long bar implies parentheses, but i could not tell you if so, i'm not much of a mathologist myself...