the product of two 2 digits numbers is 2117. the product of their units digit
is 27 and that of tens digit is 14. find the numbers
The only two possible units digits that have product 27 are 9 and 3
The only two possible tens digits that have product 14 are 7 and 2
Therefore there are only two feasible answers
23 and 79 or 29 and 73
23 and 79 have product 1817, so that's not it.
29 and 73 have product 2117, so that's it.
[You can't solve it with algebra because there are four unknowns but
only 3 statements from which to get an equation.]
Edwin