Khan/khan-exercises — Issue #10861: Systems of equations with substitution - my answer was right but it said it was wrong 
Author: KhanBugz
Created: 2012-01-10 17:04:21+00:00
State: open
Labels: ie8, wrong-or-unclear, xp

FIX IT NOW!!!!!!!!!!

[systems_of_equations_with_substitution.html?seed=43&problem=substitution-x](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_substitution.html?seed=43&problem=substitution-x&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_substitution.html?seed=43&problem=substitution-x&debug&activity=%5B%5D)

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