SOLUTION: A two-digit number is eighteen more than the sum of its digits. The tens digit is three less than the units digit. Find the number.

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Question 313415: A two-digit number is eighteen more than the sum of its digits. The tens digit is three less than the units digit. Find the number.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
let the digit in the yens place be x
and the digit in the units place be y.
the number will be 10x+y
..
the sum of the digits will be x+y
..
10x+y= 18 +x+y
10x-x=18
9x=18
x=2
..
x=y-3 ( tens digit is 3 less than units digit)
plug the value of x
so y=5
The number is 25