Question

Which property is demonstrated in the equation

(2+x)+3y = 3y+(2+x)

Answer 1

I could be wrong, but I do not think it matters what you put

Here is what I mean:

2+x=2+x

3y=3y

Despite the value, of what you pit for x or y, the sum is always equivalent. So you can pretty much put any value and it will be accurate. I hope this helps. :)