Question 948803
u, units
t, tens
Original:  {{{10t+u}}}
Reversed: {{{10u+t}}}


{{{10u+t=-36+(10t+u)}}}


{{{10u+t-(10t+u)=-36}}}
{{{10u+t-10t-u=-36}}}
{{{9u-9t=-36}}}
{{{u-t=-4}}}
{{{highlight_green(t-u=4)}}}


Only a few combinations are possible for the digits.  
Whole numbers only.
{{{t<=9}}} and {{{u>=1}}}.
Simple arithmetic facts will help you find t and u.


Acceptable Original Numbers:  95, 84, 73, 62, 51.