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.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> 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.      Log On


   

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) About Me  (Show Source):
You can put this solution on YOUR website!

opposite numbers have same absolute value but different sign, like number 9 has opposite -9
property of opposites:
When you add a number to its opposite you get zero a%2B%28-a%29=0
so,9%2B%28-9%29=-9%2B9-0 and -3%2B3=0 are examples of property of opposites

Answer by Alan3354(69443) About Me  (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.