Question 1122278
You can assign variables to value of each digit.
t for the tens
u for the ones or units
and the unknown number is  {{{10t+u}}}.



If you follow the description literally, you could write
{{{system(10t+u=6+7(t+u),and,10u+t=2+3(t+u))}}}

Simplify and solve that system.


{{{system(t-2u=2,-2t+7u=2)}}}


{{{system(u=2,and,t=6)}}}


NUMBER:    62