SOLUTION: Which is a example of property of opposites? 9+-9=-9+9 or -3+3=0 They both equal zero but how to I know with one is opposite.

Question 971722: Which is a example of property of opposites?
9+-9=-9+9 or -3+3=0 They both equal zero but how to I know with one is opposite.
Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

opposite numbers have same absolute value but different sign, like number has opposite
property of opposites:
When you add a number to its opposite you get zero
so, and are examples of property of opposites
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Each is the opposite of the other.
-9 is the opposite of +9.
+9 is the opposite of -9.
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