Question 1109570
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If the digits swap places, the number is 18 less than the original number.
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9 and 7 ?


{{{97-79=18}}}
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{{{97-18=79}}}


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If t for TENS and u for ONES,
original, {{{10t+u}}}
and 
swapped, {{{t+10u}}}.
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{{{t+10u+18=10t+u}}}, as a start, but after simplifying, you could pick whatever digits seem reasonable, differing by 2.


original number, 97

(just one example)