You can put this solution on YOUR website! Let's call the number we are looking for x. Then three times the number would be 3x, and "25 added to three times the number" would be 3x+25. Thus, we need to solve
Subtract 25 from both sides
Divide both sides by 3
Thus the magical number is 9. You can check your answer logically. If you multiply 9 by 3 (27) and add 25, you do indeed get 52.