SOLUTION: Solve the linear system by using elimination x+4y=9 -x-2y=3

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve the linear system by using elimination x+4y=9 -x-2y=3      Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 438991: Solve the linear system by using elimination
x+4y=9
-x-2y=3
Found 2 solutions by Alan3354, rwm:
Answer by Alan3354(30993) About Me  (Show Source):
You can put this solution on YOUR website!
Add the 2 equations.

Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
add them and solve for y then plug in that value in either of the original equations and solve for x