SOLUTION: Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1052770: Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
S=10%2BB
Next year,
%28S%2B1%29=2%28B%2B1%29
S%2B1=2B%2B2
S-2B=1
Substitute from above,
10%2BB-2B%2B1
-B=-9
B=9
So then,
S=10%2B9
S=19