Need an sample of two step equation word problem.
http://www.mathvideotutorials.com/Two-Step-Equations.html
http://money.howstuffworks.com/personal-finance/math-tutoring/equations/two-step-equation-and-word-problem.htm
http://money.howstuffworks.com/personal-finance/math-tutoring/equations/two-step-equation-and-word-problem.htm