Khan/khan-exercises — Issue #9487: Linear equations 4 - only one solution is accepted of two correct solutions. 
Author: KhanBugz
Created: 2011-12-25 06:01:56+00:00
State: open
Labels: firefox, leopard, other

Depending on which side of the equation is solved first, the answer is different when put in fractions.
in the 5x + 17 /-4x-5 problem, I think -1 20/37 and -1 4/27 are both right, but the program only accepts the former.

[linear_equations_4.html?seed=133&problem=x-on-top-and-bottom](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/linear_equations_4.html?seed=133&problem=x-on-top-and-bottom&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/linear_equations_4.html?seed=133&problem=x-on-top-and-bottom&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-1%204%2F27%5C%22%22%2C425%5D%2C%5B%22correct-activity%22%2C%22%5C%22-1%2020%2F37%5C%22%22%2C23%5D%5D)

["-1 4/27","-1 20/37"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

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