Asked by judy williams
. Prove that -x - y = -y – x; for all integers x and y.
Answers
Answered by
Henry
-X - Y = - Y - X,
-X + (-Y) = -Y + (-X)..
Commutative Property: The order of addition does not matter.
a + b = b + a.
-X + (-Y) = -Y + (-X)..
Commutative Property: The order of addition does not matter.
a + b = b + a.
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