Khan/khan-exercises — Issue #5303: Distributive property with variables - -f+7=7-f
Author: KhanBugz
Created: 2011-11-01 00:17:19+00:00
State: open
Labels: firefox, xp

Reporter: myjupiter@hotmail.com

I get a wrong answer when I choose the answer 7-f when the hints give the final answer -f+7. Aren't those two expressions interchangable?

[distributive_property_with_variables.html?seed=152&problem=ABXCD](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/distributive_property_with_variables.html?seed=152&problem=ABXCD&debug)

["7 - f"]

Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

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