TheHungryHistory TheHungryHistory 03-03-2017 Mathematics contestada Which systems below would be most easily solved using the substitution method? A. 5x + 7y = 45 2x - 7y = -14 B. 2m - 3n = -2 m + 4n = 24 C. 2x = -3y + 4 x = 2y - 5 D. 7x + 2y = 16 -21x - 6y =24