SOLUTION: Sally is Bob's younger sister, and she is 7 years younger than Bob. If you multiply Bob's age by three, and subtract sally's age, you get their mother's age, which is 37. How old i

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Sally is Bob's younger sister, and she is 7 years younger than Bob. If you multiply Bob's age by three, and subtract sally's age, you get their mother's age, which is 37. How old i      Log On