SOLUTION: the sum of the digits of a two-digit number is 15. The second digit is 12 less than twice the girst digit. What is the number?
Algebra.Com
Question 416118: the sum of the digits of a two-digit number is 15. The second digit is 12 less than twice the girst digit. What is the number?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let digits be x & y
x+y =15.......1
y=2x-12.......2
substitute the value of y in 1
2x-12+y=15
3x=27
/3
x=9
..
x+y=15
y=6
96 is the number
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