Aditive Identity Definition

In mathematics, an additive identity is defined as value when added to any digit or number, the resultant answer will be the same real number added with the value of additive identity.

As it is clear from the definition, the only number which gives the same value in result when added to any real number is zero (0). For instance, if 8 is added to 0, then the resultant answer will be 8+0 = 8.

If we add any negative real number like -10 with 0, we will get the same real number in the answer, -10+0 = -10. Hence it is proved that the additive identity = 0.