How would I find values for A and B such that [tex]AB-A-B=1673[/tex] Where A and B are integers? I know the answer (28 and 63), but I want to know how to arrive at that answer without any guessing, or at least with a minimum amount of guessing. Are there any other solutions? I just made this question up so there might be. If it is not possible or just very very difficult then tell me.