I am so confused with this sentence
"Let's agree to disagree"

Is it a == or != or !== or ===

As in "we agree that you see 6 / 2(1 + 2) == 9 and I see 6 / 2(1 + 2) == 1, so we'll not talk about it."

The correct answer is actually 9, btw.

Me: a == x
You: a == y
Assuming x != y

Agree to disagree would be
(Me && You) == null
Expanded
( (a == x) && (a == y) && (x != y) == null

If you don't pass the question on your logic homework, let me know.

@RiderExMachina Actually the correct answer is that you are combining two different mathematical notations and the question is invalid.

@RiderExMachina

6 ➗2 ✖️(1 ➕2) = 9

6
-------- = 1
2 (1 + 2)

As for the OP's question, I would say it's something like this:

assert(userA.agreesWith(userB) == userB.agreesWith(userA))

I just want to let you know, i have no clue what is going on here. 😕

@RiderExMachina how is the correct answer 9?

@devios1 No. The rule is that brackets are dealt with first.

So 6 / 2 * 3

Then left to right.

3 * 3

Which is 9.

@Timothy-Barron
See @Wildgoose's post

@Wildgoose which rule is this? Cuz in math the 2 gets distributed into all of the parentheses first, no?

@demiko realized that and deleted my comment after 3 mins. You are fast ;)

@Wildgoose BEDMAS is not a law, it's a mnemonic device.

In proper mathematical notation, 2 (1 + 2) does not just represent times, it's a term and has higher precedence than the division that precedes it.

In other words, you can't split the term up into denominator (2) and a numerator (1 + 2) as it would change what's represented.

For example, consider if (1 + 2) was replaced with 'a'. It then becomes:

6 / 2a

…which is equivalent to 6 ➗(2 ✖️a), or 6 ➗(2 ✖️(1 ➕2)) once you substitute the 1 + 2 back in.

@devios1 Sorry, yes, you're correct. And I already knew that - but that's what happens when you post when on holiday in Prague after drinking lots of excellent Czech beer. 🤓

@Timothy-Barron Yes, you're right. I was posting while inebriated. Sorry!

@Wildgoose you're all good man!