Khan/khan-exercises — Issue #12209: Systems of equations with elimination - asiay johnson
Author: KhanBugz
Created: 2012-01-26 18:00:47+00:00
State: open
Labels: chrome, hard

ms.nagash dosnt tech us nunthing khan does it all and we dont learn nunthing the computer teachs us and if we get a problem wrong how will we learn from it

[systems_of_equations_with_elimination.html?seed=89&problem=elimination-y](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_elimination.html?seed=89&problem=elimination-y&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_elimination.html?seed=89&problem=elimination-y&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C13%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-3%5C%22%2C%5C%22%5C%22%5D%22%2C751%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%5D)

[["-3",""]]

Mozilla/5.0 (X11; CrOS i686 1193.194.0) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7

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