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Chapter 1: Q8. (page 12)

Find each sum or difference.

-47-13

Short Answer

Expert verified

The difference of numbers is 鈥� 60.

Step by step solution

01

Step 1. Rewrite as an addition.

To subtract 13, we will add its inverse. So,-47鈥�13=(-47)+(-13)

02

Step 2. Determine to add or subtract.

Since 鈥� 47 and 鈥� 13 both are of the same sign. So we will add them.

03

Step 3. Determine the sign.

We will add the absolute values. Since both 鈥� 47 and 鈥� 13 are negative. So the result will also be a negative value.

We can write(-47)+(-13)=-(|-47|+|-13|)

04

Step 4. Simplify.

We know that the absolute values of the non-zero numbers are always positive.

So, -(|-47|+|-13|)=-(47+13)=-60.

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