Based on your conditions and letting x = the first number and y = the second number (in the ones place), the number is xy
Then,
x + y = 14 or x + y = 14 adding the 2 equations gives
and 10x + y = 11x - 2 x - y = 2
2x = 16 or
x = 8 and y = 14 - x = 6
So, the number xy is 86