Chapter 1.4, Problem 56E

To determine

To calculate: The value of the expression $-a+\left|-b\right|$ when $a=-2\text{ and b}=-13$

Answer to Problem 56E

The value of the expression $-a+\left|-b\right|$ is 15

Explanation of Solution

Given information:

Consider the given expression $-a+\left|-b\right|$

And the values $a=-2\text{ and b}=-13$

Calculation :

  $\begin{array}{l}-a+\left|-b\right|\\ =-(-2)+\left|-13\right|\text{ [Substitute the value}-2\text{ for }a\text{ and }-13\text{ for }b]\\ =2+13\text{ [The opposite of }-2\text{ is 2 and absolute value of}-13\text{ is 13]}\\ \text{=15 [Add]}\end{array}$