# Chapter 1 - Introduction to Algebraic Expressions - 1.7 Multiplication and Division of Real Numbers - 1.7 Exercise Set - Page 59: 125

We get the original number back.

#### Work Step by Step

If take the reciprocal of $x$: $\frac{1}{x}$ Then, we take the reciprocal of $\frac{1}{x}$: $\frac{1}{\frac{1}{x}}=x$

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