Question

What is the sum of 15 and it's additive inverse

Answer 1

An additive inverse is the opposite of a number. If the number is negative, the inverse is positive. If the number is positive, the inverse is negative.

The additive inverse of 15 is -15.

Sum is what you get when you use addition.

15 + (-15) = 0

Answer 2

The opposite of a number. For example, the additive inverse of 12 is –12. The additive inverse of –3 is 3. Formally, the additive inverse of x is –x. Note: The sum of a number and its additive inverse is 0. Hope i helped :)