Khan/khan-exercises — Issue #10327: Expressions with unknown variables 2 - What the heck is going on?
Author: KhanBugz
Created: 2012-01-04 21:07:32+00:00
State: open
Labels: firefox, hard, win7

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[expressions_with_unknown_variables_2.html?seed=190&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=190&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=190&problem=0&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C86%5D%5D)

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Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

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