SOLUTION: "The sum of the digits of a two-digit number greater than 50 is 12. The difference between the digits is 4. Find the two-digit number."

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Question 571275: "The sum of the digits of a two-digit number greater than 50 is 12. The difference between the digits is 4. Find the two-digit number."
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the digits of a two-digit number greater than 50 is 12. The difference between the digits is 4. Find the two-digit number."
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let u=units digit
let t=tens digit
t+u=12
t-u=4
add
2t=16
2t=16
t=8
u=12-t=4
two digit number: 84