Help asap A certain number of two digits is three times the sum of its digits, and if 45 be added to it the digits will be reversed find the number

The answer is 27 & 72 HOW?

27 & 72

Step-by-step explanation:

3*24=72 and 3*9=27 so they are both divisible by 3 and also if you subtract 24 from 72 you get 45. get it now?

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right