Answer:
(0 or 0)
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zero pair
They add up to 17
Add each side of the decagon, or all ten sides, to get the sum.
0 because the opposite of -2 is 2, and adding them together cancels each other out, making 0
No,because if you add -5 and 10 you get 5 which is not equal to zero. They way you would get 0 as an answer is if you add a negative integer and it's opposite like -5 and 5. Then your answer would be zero.