SOLUTION: Solve the systems of equations by substitution y=-x y=-2x

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve the systems of equations by substitution y=-x y=-2x      Log On


   



Question 820627: Solve the systems of equations by substitution y=-x y=-2x
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
---
y = -x
y = -2x
---
put the system into standard linear form:
---
x + y = 0
2x + y = 0
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
answer:
x= 0
y= 0
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php