SOLUTION: The sum of the digits of a two-digit number is 14. The first digit is 4 less than twice the second digit

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Question 535993: The sum of the digits of a two-digit number is 14. The first digit is 4 less than twice the second digit
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
First Digit = x


Second Digit = y


x+y=14


x=2y-4 (This comes from the relationship explained.)


Substitute the value of x, in terms of y, from the second equation into the first.


2y-4+y=14 ---> 3y=18 (combined y's, added 4 to both sides.)---> y = 6 (divided both sides by 3.)


x+6=14 (subtract 6 from both sides.) x=8