SOLUTION: solve the following system of equations. x+7y=9 x=4-7y

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: solve the following system of equations. x+7y=9 x=4-7y      Log On


   



Question 813074: solve the following system of equations.
x+7y=9
x=4-7y

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve the following system of equations.
x+7y=9
x=4-7y --> x+7y = 4
----------------
x+7y = 9
x+7y = 4
--------------- Subtract
0 = 5
---
It's inconsistent ---> no solution
If you graph the equations, you get parallel lines.
No intersection, no solution