Khan/khan-exercises — Issue #8662: Systems of equations - systems of inequalities
Author: KhanBugz
Created: 2011-12-14 20:15:25+00:00
State: open
Labels: hard, ie8, ie9, win7

I NEED HELP WITH THEM!!!!!!!!!!!!!

[systems_of_equations.html?seed=197&problem=substitution-y](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=197&problem=substitution-y&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=197&problem=substitution-y&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%226%5C%22%2C%5C%221%5C%22%5D%22%2C77%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%226%5C%22%2C%5C%221%5C%22%5D%22%2C3%5D%5D)

[["6","1"],["6","1"]]

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