SOLUTION: a two digit number is such that the tens digit exceeds twice the unit digit by 2 and the number obtained by inter changing the digit is 5 more than three times the sum of the digit

Question 804199: a two digit number is such that the tens digit exceeds twice the unit digit by 2 and the number obtained by inter changing the digit is 5 more than three times the sum of the digit, find the two digit number.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the tens digit
Let = the units digit
---------
(1)
(2)
----------------------------
(2)
(2)
By substitution:
(2)
(2)
(2)
(2)
and
(1)
(1)
(1)
The number is 83
check:
(2)
(2)
(2)
(2)
OK

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