6/2(2+1)=???

[neverunit]

The problem is this question is too vague. The question itself should've been either of these:
View attachment 23789
However flawed questions aside as everyone's been saying your method while not completely incorrect isn't what modern math standards define as correct.
Also you're right math doesn't simply change however since humans make math and define mathematical standards which are subject to error we can change what we know about math and fix errors that were once considered correct.

According to modern math, it is 9 according to pre1917 math, it’s 1. Either way, the one on the left of ur image is the way it is written today, and should not be ambiguous because again 1917

 

[7finals]

Wow people were dumb before 1918

 

[MamaLuigi]

who will be the 100th reply to this thread

 

[kaya]

You do certain equations in order, B rackets E xponents D ivision M ultiplication A ddition S ubtraction

oh i was always taught pemdas, same idea but instead it’s
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

 

[ApexWasabi]

View attachment 23787
ITS LIKE THIS OHMYGOD PLEASE STOP

x=your mom

 

[System64]

According to modern math, it is 9 according to pre1917 math, it’s 1. Either way, the one on the left of ur image is the way it is written today, and should not be ambiguous because again 1917

Wow people were dumb before 1918

I may be mistaken, but I'm fairly sure that 1917 is not referring to the year when PEMDAS 1917 was changed to the modern day PEMDAS; rather, PEMDAS 1917 was introduced in 1917 and then updated much later on, in the computer era, since it's only then that the reasons for the introduction of the l/r rule were no longer relevant.

 

[7finals]

x=your mom

for the second time in the same thread, HAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHA

 

[ApexWasabi]

for the second time in the same thread, HAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAAAAAAAAAAHAHHAHAHAHAHAHGDHAYAYGAHGGAHAHAHHAAHGAYAHAGAHUAHAUYBBHAHAHHAHAHAHAHAHAHAHA

I solemnly and sincerely recommend you to seek help from a professional.

 

[System64]

thankfully my glasses have anti-braincell-demolition protection