48÷2(9+3)=?

There will be no lock, if you don’t like math stay out.

No because in your own example if it’s

48/2*3(3+1)

It becomes 72(3+1) going left to right

So you’re proving yourself wrong by saying that 3 will be assigned to the parenthesis and don’t out of order of left to right, but somehow that 2 isn’t assigned???

It doesn’t matter what sign is in front, the rule is the rule, distributive property states that it’s equivalent of (18+6) with 2 factored out making it (9+3) and two sitting outside.

That’s why it can be written as 48/(9+3)2 and still be right.