Khan/khan-exercises — Issue #12791: Expressions with unknown variables 2 - Answer given, no computation needed
Author: KhanBugz
Created: 2012-02-01 10:52:28+00:00
State: open
Labels: other, win7

This particular question is too easy:

If 4a+b+5c=−9 ,
what is 4a+b+5c?

[expressions_with_unknown_variables_2.html?seed=93&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=93&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/expressions_with_unknown_variables_2.html?seed=93&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%22-9%5C%22%22%2C23%5D%5D)

["-9"]

Opera/9.80 (Windows NT 6.1; U; en) Presto/2.9.168 Version/11.52

MathJax is loaded, ready, queue length: 0