Khan/khan-exercises — Issue #15796: Linear equations 4 - Correct answer incorrect?
Author: KhanBugz
Created: 2012-03-09 04:25:32+00:00
State: open
Labels: firefox, wrong-or-unclear

Reporter: rubypanther@gmail.com

in Linear equations 4 I gave as the answer -0.5/3 which came naturally from the question, which was scored as being wrong. Eventually it accepted -1/6 which is the same thing!
Since both can easily come out of the video technique and are equal, it is very silly.

[linear_equations_4.html?seed=111&problem=x-on-bottom](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/linear_equations_4.html?seed=111&problem=x-on-bottom&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/linear_equations_4.html?seed=111&problem=x-on-bottom&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22-0.5%2F3%5C%22%5D%22%2C367%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-1.6%5C%22%5D%22%2C154%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22-1%2F6%5C%22%5D%22%2C9%5D%5D)

[["-0.5/3"],["-1.6"],["-1/6"]]

Mozilla/5.0 (X11; Linux i686 on x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

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