Select the correct answer. The sum of two numbers is -18. If the first number is 10, which equation represents this situation, and what is the second number? A. The equation that represents this situation is 10 - x = -18. The second number is 28. O B. The equation that represents this situation is 10 + x = -18. The second number is -28. O C. The equation that represents this situation is x - 10 = -18. The second himber is -8. O D. The equation that represents this situation is -10 + x = -18. The second number is -8.​