Khan/khan-exercises — Issue #4512: Algebra challenge - no letterss
Author: KhanBugz
Created: 2011-10-18 01:01:31+00:00
State: open
Labels: ie8, ie9, win7

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[algebra_challenge.html?seed=52&problem=solve-younger-3 (age_word_problems)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=52&problem=solve-younger-3&debug)

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