Khan/khan-exercises — Issue #4896: Writing expressions 1 - writing expressions1
Author: KhanBugz
Created: 2011-10-24 16:04:23+00:00
State: open
Labels: safari, snowleo

it is to hard for students

[writing_expressions_1.html?seed=37&problem=3](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/writing_expressions_1.html?seed=37&problem=3&debug)

["-7x-4"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_7; en-us) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1

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