Swiftz Swiftz 29-10-2020 Mathematics contestada Which of the following expressions is equivalent to 31y - 14z - 3y - 12x + 7 - 3z? A. 12x + 34 y + 17z + 7 B. 14y - 5x - 3z C. 12x + 31y - 3z D. -12x + 28y - 17z + 7