Question 1177059
The number, 10t+u
t for the tens
u for the ones or units



Twice the sum of the digits of a 2-digit number is seven less than the number. 
{{{2t+2u=(10t+u)-7}}}



The number with the digits reversed is more than three times the number. 
{{{10u+t>3(10t+u)}}}

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