SOLUTION: The units digit of a two-digit number is double the tens digit.If the digit are reversed,the new number is 27 more than the original number.determine the digits.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The units digit of a two-digit number is double the tens digit.If the digit are reversed,the new number is 27 more than the original number.determine the digits.       Log On


   

Question 601860: The units digit of a two-digit number is double the tens digit.If the digit are reversed,the new number is 27 more than the original number.determine the digits.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The units digit of a two-digit number is double the tens digit.If the digit are reversed,the new number is 27 more than the original number.determine the digits.
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Equations:
u = 2t
10u+t = 10t+u+27
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Substitute for "u" and solve for "t":
10(2t)+t = 10t+(2t) + 27
21t = 12t+27
9t = 27
t = 3
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u = 2t = 6
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Ans: 10t+u = 36
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Cheers,
Stan H.
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