The opposite sum of a number refers to the fact that the opposite of a sum of real numbers is equal to the sum of the opposite. Base on that, the answer would be letter D. -(-17+5) = 17+(-5). I hope you are satisfied with my answer and feel free to ask for more
Ima be honest i really don't know but Ive actually done some research on this problem and everything i read leads up to one answer which was monasticism
