I suppose you can break down -(infinity) + (infinity) to = 0, but then you run in to all sorts of complications. Like (infinity) is a limit. It is approaching something, which would certainly be an idea that doesn't relate to a typical, numerical value. However, if you go number by number: starting with 1 and add -1 and 1 and continue to (infinity) then I could certainly gain my original answer of 0.
Yeah, I know: this idea is either extremely simple or extremely boring, but I wanted to actually start this impromptu blog with the answer to it's title. The rest of the posts will just be funny or interesting anecdotes about being a math teacher. :D
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