prillshayo7rkielleZ prillshayo7rkielleZ 21-11-2016 Mathematics contestada The sum of negative eighteen and a number is eleven. What is the number? Which equation could be used to solve the problem? A) x - 18 = 11 B) 18 - x = 11 C) -x + 18 = 11 D) x + 18 = 11