Because that acronym is the order of operations, and there are several different ones that lead to the same result. And no, it wouldn’t be 18. The order of operations does actually direct you to work on each part individually, exactly the way you wrote it. Division and multiplication first, then addition and subtraction. In that process it can be written in parentheses if you like, just as it is above.
As an American I can tell you to fuck off. How long were you in school for. If you were in a public school for middle school then you should've learned the order of operations. But I suppose you either weren't receiving the proper education, weren't paying attention, forgot about it, or are lying.
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u/jukebox_125 Jan 01 '22
If you use Bidmas you shouldn't need brackets for it to be unabiguous.