Khan/khan-exercises — Issue #8281: Writing expressions 1 - Incorrect Answer
Author: KhanBugz
Created: 2011-12-09 23:40:45+00:00
State: open
Labels: firefox, wrong-or-unclear, xp

The correct answer is not among the choices offered for this question. Please correct.

[writing_expressions_1.html?seed=13&problem=2](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/writing_expressions_1.html?seed=13&problem=2&debug)

["9x+4","9x+4","-9x-4","-4x+9","4x-9"]

Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20100101 Firefox/8.0

MathJax is loaded, ready, queue length: 0