SOLUTION: A 2-digit number is 12 tims its tends digit. The sum of the digits is 12. What is the tens digit?
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Question 548275: A 2-digit number is 12 tims its tends digit. The sum of the digits is 12. What is the tens digit?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let the 10's digit =
Let the unit's digit =
given:
(1)
(2)
-------------------
(1)
(1)
Substitute (1) into (2)
(2)
(2)
(2)
and, since
(2)
(2)
(2)
The 10's digit is 4
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