what's a comma in calculus? like 9/4,y?

Question

with respect to y? huh? i learned math in another language, and i need to help my kid. and i did know pretty advanced math and statistics, but i never saw this, and i don't get with respect to. like a factoring thing? the whole thing is 9/3 +2=9/4,y=?

Oh, Dr. Spock, you're so logical! And you should have specified I was not logical. You're right, I mistyped. And you're right, the comma must just mean, so what is y? The real equation was (y/3) +2=9/4, so y=? (I added so, now that you've enlightened me). And now, I can solve it.
I just wondered because I learned to divide, when you write out the division differently, the french way. So i thought maybe the y meant something.

Answer 1

Quite frankly, your question simply doesn't make sense. Are you sure that you read or typed it properly?!

The question could be:

9/(3y + 2) = 9/4, y = ?

This is simply a way of FIRST stating an equation, and THEN posing the question "So what is y?"

In the example I gave above, it is clear that 3y + 2 = 4, so that:

y = 2/3.

Live long and prosper.

Answer 2

a comma can have few uses.

One (and most common) use is just like english language.
something, something else..

other uses are inside the arguments of a funtion for example funtion of x and y can be written as f(x,y)

it can be used to seperate the terms of a sequence for example {1, 2, 3, 4, 5, ...}

But comma is not an operator. It's not like + or -. It's just a comma. Its main purpose is seperation literally or mathematically.

Answer 3

Give us an example.

Answer 4

with respect to y