Khan/khan-exercises — pull request #10059 by dsissitka (2012-01-02 22:09:58+00:00)
Title: Re: Add problem types to interpreting linear equations exercise

Re: [Add problem types to interpreting linear equations exercise](https://trello.com/card/board/add-problem-types-to-interpreting-linear-equations-exercise/4d87e664967a0775082939ab/4eb9d28918749caf4b0e1a77)