SOLUTION: The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 7. How do you solve this?

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 7. How do you solve this?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 284628: The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 7. How do you solve this?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=7
b=7-a
b=2*a+1
7-a=2a+1
6-a=2a
6=3a
2=a
b=5
the number is 25