SOLUTION: Ruby is younger than Janeth. The sum of their ages is 31. The difference between their ages is 3 years. How old is Ruby?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Ruby is younger than Janeth. The sum of their ages is 31. The difference between their ages is 3 years. How old is Ruby?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 929565: Ruby is younger than Janeth. The sum of their ages is 31. The difference between their ages is 3 years. How old is Ruby?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
R%2BJ=31
J-R=3
Add the two equations,
R%2BJ%2BJ-R=31%2B3
2J=34
J=17
Then,
R%2B17=31
R=14