The sum of two integers is -8. If one of them is 5, then the other is

1. 3
2. 13
3. -3
4. -13

Given:

Sum of two integers = -8
One integer = 5
Let the other integer be x

According to the question, the equation can be written as:

5 + x = -8
x = -8 - 5 = -(8 + 5) $\hspace{1cm}$[Solve for x]
x = -13

∴ The other integer is -13

Hence, option 4 is the correct option.