Khan/khan-exercises — Issue #9712: Expressions with unknown variables 2 - Expressions with unknown variables needs hints
Author: KhanBugz
Created: 2011-12-28 18:20:39+00:00
State: open
Labels: firefox, other, win7

Reporter: christilin@msn.com

There are no hints along with this.

Ignore my stupid mistakes ;-)

[expressions_with_unknown_variables_2.html?seed=158&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=158&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=158&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-8%5C%22%22%2C10%5D%2C%5B%22correct-activity%22%2C%22%5C%228%5C%22%22%2C15%5D%5D)

["-8","8"]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0

MathJax is loaded, ready, queue length: 0