# Math Problem taking the Internet by storm

#### Dakota rube

##### Stylish Dinosaur
I've just realized that I have been selling weed for waaaaaaaay too little for a long time.

#### deandbn

##### Senior Member
The answer has got to be 2 because the result of the 9+3 that is 12 is still in brackets or parentheses and so has to be resolved first, before the division is done. IMHO

48/2(9+3)
48/2(12)
48/24
2

#### Lel

##### Distinguished Member
Originally Posted by deandbn
The answer has got to be 2 because the result of the 9+3 that is 12 is still in brackets or parentheses and so has to be resolved first, before the division is done. IMHO 48/2(9+3) 48/2(12) 48/24 2
Lol what? I thought Parentheses only referred to the issue inside the brackets, not next to it, so in the case of PEMDAS multiplication and division are equal going from left to right. I was taught that y(x) just refers multiplication in PEMDAS, not parentheses, and can be simply rewritten as y*x. 48Ã·2*(9+3) The parentheses only serves to tell you that 9+3 should be multiplied first, not that their products should be multiplied by 2 (otherwise you are doing division/multiplication from right to left). I understand that it's poorly written, but I don't understand why people think just because a number is next to a parentheses that it's multiplication is given a higher priority than everything that comes before it. 48Ã·2(9+3) =/= 48Ã·(2(9+3)). It doesn't seem that complicated. Or am I missing something? For those whose saying it's poorly written, it's not, it's perfectly clear.
The only thing I can think is that there's kind of a knee jerk reaction to multiply out parentheses first due to simplifying algebraic equations. Google seems to agree

#### Kajak

##### Distinguished Member
Originally Posted by Lel
y(x) just refers multiplication in PEMDAS, not parentheses, and can be simply rewritten as y*x.

#### Majerle

##### Member
Please excuse my dear aunt sally, but she says its 288.

#### Lel

##### Distinguished Member
Originally Posted by deandbn
The answer has got to be 2 because the result of the 9+3 that is 12 is still in brackets or parentheses and so has to be resolved first, before the division is done. IMHO 48/2(9+3) 48/2(12) 48/24 2
Actually, forget my last post, here's a much simpler explanation. 1Ã·2(12) = 1Ã·24

#### Kajak

##### Distinguished Member
Originally Posted by Lel
Actually, forget my last post, here's a much simpler explanation.

1/2(12) = 1/24

Unless the 1/2 is distributed within the brackets.

People who think the answer is 2 think an airplane on a treadmill can't take off.

#### Dakota rube

##### Stylish Dinosaur
Originally Posted by Kajak
People who think the answer is 2 think an airplane on a treadmill can't take off.

Are you a Jamie fan? Or more of an Adam guy?

#### asdf

##### Senior Member
there is no ambiguity.

you do the parentheses first; i don't think anyone disagrees. now you are left with a string of multiplication/division operators which are treated equally under BEDMAS and calculated, in order, left-right.
...gives you 288.

to reiterate: no ambiguity.

#### Kajak

##### Distinguished Member
Originally Posted by Dakota rube
Are you a Jamie fan? Or more of an Adam guy?

So hard to pick

#### Hop

##### Well-Known Member

This math problem is spawning 100 page debates on every forum Ive been to...

#### rjmaiorano

##### Distinguished Member
Everyone posting an answer or response is an ignorant fuck. (my poast included)*(9+3)/12=

#### tagutcow

##### Stylish Dinosaur
Originally Posted by Hop

This math problem is spawning 100 page debates on every forum Ive been to...

I haven't seen brother turn against brother this viciously since the "great taste / less filling" debates of the '80s.

#### *#..

##### Senior Member
How I see this problem is you can redistribute the 2 back into the parentheses. Hence, you'll get: 48Ã·2(9+3) 48Ã·(18+6) 48Ã·(24) 2 There's this property called the "distributive property" that a lot of those people on the physics forum forgot which is just
Remember back in algebra, you could factor out a 2 in an equation like: (2x+2) 2(x+1) Same concept, you just have a number (18) instead of a variable (x). The way it's written is not sloppy at all - most people have just forgotten the basic properties of elementary algebra. Why someone would factor out a 2 from (18+6) is beyond me, but you can do it.

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