How do you put equations in function form?

Let's say:

Mr. Mikey has 2 more boards than Mr. Loy.

Okay, now let's do the function using x and y

x(1)(2)(3)(4)

y(3)(5)(7)(9)

Okay, now we'll do the mathematical equation:

First we'll use y because it was firstly blank. And we'll use an equal sign next to it, so it should look like this:

y =

We know that we have 2 and we don't know how much is the number of Mr. Loy so it should look like this. Just plus it with a number like g or x or all letters in the alphabet:

y = 2 + g

Yes, now that is the answer.