Question

additive identity is?

Answer 1

Additive identity is a property due to which when a number is added to another number the sum is always 0.
the additive inverse of a number is the same number with a different sign.
When it comes to zero, zero is an exception because zero is neither positive nor negative thus the additive inverse is zero itself.

Example:-7+(-7)=0
               So the additive inverse of 7 is -7 or the additive inverse of -7 is 7  

Answer 2

Answer:

if you add any number to 0 you will get the number itself