SOLUTION: What property of real number is this? 9+(-9)=0

SOLUTION: What property of real number is this? 9+(-9)=0

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Question 757449: What property of real number is this? 9+(-9)=0
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

Additive Inverse (Opposite)
For every real number there exist a real number, denoted , such that

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