Here's the question you clicked on:
AlexisDelgado
When solving the system x + 2y = 9 and x - y = 6, which expression could be substituted for x in the second equation? A. 9 - x B. y - 9/2 C. 9 - 2y D. 1/2 y + 9
http://openstudy.com/code-of-conduct "Don’t post only answers - guide the asker to a solution.
|dw:1332247403638:dw|
it is shifting of y variable to rhs....