# Chapter 1 - Section 1.4 - Properties of Real Numbers and Algebraic Expressions - Exercise Set: 58

8

#### Work Step by Step

The additive identity property holds that $a+0=a$, for some real number $a$. In other words, the property tells us that the sum of a real number $a$ and 0 is equal to $a$. In this example, we can set $8+0=a+0$, where $a=8$. Therefore, the other side of this equation is $a=8$.

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