Two machines at a factory are filling cans of soup one machine already filled 180 cans of soup and fills cans at the rate of 15 per minute. The second machine has already filled 210 cans of soup, and fills cans at the rate of 12 per minute write an equation to show when the two machines will have failed the same number of cans of soup use as your variable.

A) 210 -12x = 180 - 15x
B) 12x + 180 = 15x + 210
C) 12x - 210 = 15x - 180
D) 12x + 210 = 15x + 180