Khan/khan-exercises — Issue #11511: Systems of equations - No Info On Acceptable Formats
Author: KhanBugz
Created: 2012-01-18 13:22:03+00:00
State: open
Labels: chrome, hard, win7

The systems of equation module doesn't have any info on the acceptable formats for the answer. I assumed that I could in Answer in any format and after figuring out the problem it tells me that my answer is incorrect because I answered as a decimal and not a fraction. Please either provide info on the accepted formats or accept answers in all formats.

Thanks,

[systems_of_equations.html?seed=110&problem=substitution-x](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=110&problem=substitution-x&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations.html?seed=110&problem=substitution-x&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%221.875%5C%22%2C%5C%22-1.5%5C%22%5D%22%2C1013%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%5D)

[["1.875","-1.5"]]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.18 (KHTML, like Gecko) Chrome/18.0.1010.1 Safari/535.18

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