# Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 47

$-4-(-5)$ =$1$

#### Work Step by Step

The answer is $1$ not $-1$ because when subtracting an integer, the double negatives becomes positive. $-4-(-5)$ becomes $-4+5$ which is equal to $1$.

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