Khan/khan-exercises — Issue #13811: Solving for a variable - Negative on bottom of fraction
Author: KhanBugz
Created: 2012-02-14 16:14:35+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: kevinjtobin@gmail.com

I thought the answer couldn't start with a negative on the bottom of the fraction. I changed all the signs at the end and then selected "None of the above" on this one, because the signs were all wrong. Did I miss something?

[solving_for_a_variable.html?seed=74&problem=ABCD_EF](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=74&problem=ABCD_EF&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_for_a_variable.html?seed=74&problem=ABCD_EF&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C140%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C14%5D%2C%5B%22hint-activity%22%2C%220%22%2C15%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C28%5D%2C%5B%22hint-activity%22%2C%220%22%2C30%5D%5D)

["None of the above."]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7

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