Khan/khan-exercises — Issue #11576: Solving for a variable - solving for a variable
Author: KhanBugz
Created: 2012-01-19 02:17:34+00:00
State: open
Labels: ie8, ie9, vista, wrong-or-unclear

I got a problem wrong and when I clicked for it to show my the answer I saw which one it was talking about but instead of it saying 2m it said 3m so therefore I got it wrong.

[solving_for_a_variable.html?seed=55&problem=ABCD_EF](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=55&problem=ABCD_EF&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=55&problem=ABCD_EF&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%5C%5C%5C%22%3El%3D%20%5C%5C%5C%5Cdfrac%7B-3m%20-%208%7D%7B2m%20%2B%20n%20-%207%7D%3C%2Fcode%3E%5C%22%22%2C207%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%5C%5C%5C%22%3El%3D%20%5C%5C%5C%5Cdfrac%7B-3m%20%2B%2012%7D%7B3m%20%2B%20n%20-%207%7D%3C%2Fcode%3E%5C%22%22%2C18%5D%5D)

["l= \\dfrac{-3m - 8}{2m + n - 7}","l= \\dfrac{-3m + 12}{3m + n - 7}"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/5.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; WinNT-EVI 06.12.2009; AskTbGAM/5.14.1.20007)

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