How do you find the opposite of a number?

To find the opposite of a number just switch signs with the current number.

-7 and 7 are opposites and so are 13 and - 13. All opposites have the same absolute value which is the number away from 0. 8 is 8 units away from 0 and - 8 is 8 units away from 0

For example if you have - 9 it’s just 9