Khan/khan-exercises — Issue #8141: Systems of equations with substitution - there's code on the problem silly!
Author: KhanBugz
Created: 2011-12-08 18:09:06+00:00
State: open
Labels: firefox, not-showing, win7

Reporter: escanlan.sj@mysummitps.org

there is some code on the problem for solving systems of equations with substitution.

[systems_of_equations_with_substitution.html?seed=155&problem=substitution-x](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_substitution.html?seed=155&problem=substitution-x&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/systems_of_equations_with_substitution.html?seed=155&problem=substitution-x&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B%5C%22-2%5C%22%2C%5C%229%5C%22%5D%22%2C152%5D%5D)

[["-2","9"]]

Mozilla/5.0 (Windows NT 6.1; rv:5.0.1) Gecko/20100101 Firefox/5.0.1

MathJax is loaded, ready, queue length: 0