Question

Find the sum of:

$(-9)+(-8)+5+17$

Answer 1

Sum of integers:

The sum of $(-9)+(-8)+5+17$ :

$=$$[(-9)+(-8)]+5+17$ ( Associative property of Addition: The sum remains the same, even if the grouping is changed)

$=$$(-17)+5+17$ (The sum of two negative integers is calculated by adding the integers' absolute values and putting a minus sign in the result.)

$=$$(-17+17)+5$ (Associative property of Addition)

$=$$\left(0\right)+5$ ( The sum of an integer and its opposite is equal to zero)

$=$$5$

Hence, the sum of $(-9)+(-8)+5+17$ is $5$.