# SOLUTION: In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Age -> SOLUTION: In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is      Log On

 Ad: Over 600 Algebra Word Problems at edhelper.com Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Word Problems: Age Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Age Word Problems Question 593127: In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B isAnswer by mathhelp@(10)   (Show Source): You can put this solution on YOUR website!Problem: In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is lets use A=x B=y Now: x = y+9 In ten years: x = 2y-10 = x+10=2y lets solve! x = 2y-10 x = y+9 ok, so you have to make one of the equations cancel out x or y lets cancel out x by multiplying everything by the negative sign (-) x = 2y-10 -x = -y-9 ----------- 0 = y-19 so y is 19 lets find x 2(19)-10 = x x is 38-10, which is 28