Answer:
46/3 or 15.3
Explanation:
After rounding to the nearest integer, we have:
3(x - 7) = 25.
Dividing both sides by 3, to isolate (x - 7), we get x - 7 = 25/3.
Adding 7 to both sides, we get x = 25/3 + 7, or x = 25/3 + 21/3, or x = 46/3. This is 15 1/3, which is closest to the last given possible answer (15.3).