Khan/khan-exercises — Issue #10081: Solving for a variable - negative in denominator. 
Author: KhanBugz
Created: 2012-01-03 02:43:23+00:00
State: open
Labels: chrome, snowleo, wrong-or-unclear

all your answers have a negative in the denominator. last question is a 'none of the above' answer. i picked none of the above since you cant have negatives in your denominator. thanks.

[solving_for_a_variable.html?seed=120&problem=ABCD_EF](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=120&problem=ABCD_EF&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=120&problem=ABCD_EF&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C78%5D%5D)

["None of the above."]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

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