Answer to Question #329729 in Discrete Mathematics for Areeba

Discrete Mathematics

Question #329729

Let Q(x, y) be the statement “x + y = x − y.” If the domain for both variables consists of all integers, what are the truth values?

Expert's answer

So, 0 is an integer. If we put make 0+0 = 0.

Then, 0-0 = 0, so 0+0 = 0-0

it means that x = 0, y = 0

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