Khan/khan-exercises — Issue #10920: Systems of equations - The correct answer is not being accepted 
Author: KhanBugz
Created: 2012-01-11 02:51:54+00:00
State: open
Labels: firefox, vista, wrong-or-unclear

Reporter: erinadonlon@yahoo.com

The correct answer is not being accepted.

[systems_of_equations.html?seed=82&problem=substitution-x](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=82&problem=substitution-x&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=82&problem=substitution-x&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.25) Gecko/20111212 Firefox/3.6.25 (.NET CLR 3.5.30729)

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