Question

When x is a nonzero integer, Alexis says, the expression x+(-x) always equal zero. Is Alexis correct? If so, provide an example to support her claim. If not, provide a counter example to disapprove her claim.

Answer 1

Yes, she’s correct because a positive integer, like 6, as x would equal 0 (6+(-6)=0) and a negative integer, like -4, as x would equal 0 (-4+(-(-4))=0).