2. At a gym, Frank did a certain number of push-ups. Tom did 12 more than Frank. The total number both men did was 66. Which equation could be used to find the number of push-ups Frank did? A. X + 12x = 66 B. 2x + 12 = 66 C. 2x = 66 + 12 D. x + 12 = 66 + X D​