Substitute for and for . Do the arithmetic. If you end up with a true statement, something that looks like , then the ordered pair is an element of the solution set of the given equation. Otherwise, not.
In the future, use parentheses vice curly braces to denote an ordered pair. Curly braces denote a set. Also, never type in all caps; it is shouting and therefore rude and annoying. Please don't apologize; just stop doing it.
John
My calculator said it, I believe it, that settles it
