If the tens of a three digit number are A-2, the single digit number is two times more than the ten digit number, and the hundred digit number is three times less than the single digit number, then the three digit number can be expressed as_______ ?

If the tens of a three digit number are A-2, the single digit number is two times more than the ten digit number, and the hundred digit number is three times less than the single digit number, then the three digit number can be expressed as_______ ?

It's 3a-7,
Ten is A-2
It's 3a-4
1≤3a-7≤9
0≤a-2≤9
0≤3a-4≤9
The range of a is 3 or 4
Three digits could be 215 or 528