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3 votes
The numbers are opposites.
The distance between the two numbers on the number line is 18.

2 Answers

13 votes
The answers 9 and -9 hope this helps
User Piotr Tempes
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6 votes

9 and -9

Explanation:

The distance between both are 18, and they are opposites because one is positive, and the other is negative.

User Mswiszcz
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