Khan/khan-exercises — Issue #13854: Rate problems 1 - Solution step seems to be wrong
Author: KhanBugz
Created: 2012-02-15 01:12:48+00:00
State: open
Labels: chrome, other, win7

Add the two orange equations
dm +db= 32
−dm−(20/6)∗db=−80
------------------
(−14/6)∗db=−48

??

[rate_problems_1.html?seed=40&problem=3](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/rate_problems_1.html?seed=40&problem=3&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/rate_problems_1.html?seed=40&problem=3&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%2253%5C%22%5D%22%2C1729%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C33%5D%2C%5B%22hint-activity%22%2C%220%22%2C40%5D%2C%5B%22hint-activity%22%2C%220%22%2C84%5D%2C%5B%22hint-activity%22%2C%220%22%2C101%5D%2C%5B%22hint-activity%22%2C%220%22%2C161%5D%2C%5B%22hint-activity%22%2C%220%22%2C586%5D%5D)

[["53"]]

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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