# SOLUTION: Solve the system by substitution 2x+2y=0 y=4x+0

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations -> SOLUTION: Solve the system by substitution 2x+2y=0 y=4x+0      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!

 Linear Solvers Practice Answers archive Word Problems Lessons In depth

 Question 125686: Solve the system by substitution 2x+2y=0 y=4x+0Answer by jim_thompson5910(28598)   (Show Source): You can put this solution on YOUR website! Start with the given system Plug in into the first equation. In other words, replace each with . Notice we've eliminated the variables. So we now have a simple equation with one unknown. Multiply Combine like terms on the left side Divide both sides by 6 to isolate x Divide Now that we know that , we can plug this into to find Substitute for each Simplify So our answer is and which also looks like Notice if we graph the two equations, we can see that their intersection is at . So this verifies our answer. Graph of (red) and (green)