answersLogoWhite

0


Best Answer

-9 + -9

This is the same as -9 - 9...


...which equals -18

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is negative 9 plus negative 9?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is negative 8 plus negative 9?

9 + (-8) = 1


What is negative 5 plus negative four?

Negative 9


What is a negative 9 plus a negative 6?

a negative 15


What is negative 6 plus negative 3?

negative 9


What is 6 plus negative 15?

Negative 9


What is zero plus negative 9?

negative nine


What is negative 9 plus 4?

-9 + 4 = -5 (negative 5)


What is negative 36 plus negative 9?

The sum of -36 and -9 is -45.


What is negative 9 plus negative 1?

The sum of -9 and -1 is -10.


What is negative eleven plus twenty?

Negative eleven plus twenty is positive 9.


What is 9 plus negative 9?

9 + (-9) = 9 - 9 = 0


What is 4 plus negative 9 equal?

the answer is negative 5