Hi Community,

I am having some trouble with this question:

"Show that the additive inverse, or negative, of an even number is an even number using a direct proof. "

I know it's basically asking me to prove that the inverse of an even number is even. I'm having trouble expressing it in English/ Mathematical operators.

I have:

Let n = 2a, for all !n=2a, n is even

Someone help?

-M