which method do i use to solve: elimination or substitution

Algebra
Tutor: None Selected Time limit: 1 Day

y=-x

6x+6y=0

Oct 5th, 2014

I use substitution because you have y=-x

But if you notice, 

6y = -6x

  y = -x

The two equations represent lines that are parallel because they have the same slope, so the system doesn't have solution because the lines will never meet.

Oct 5th, 2014

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 5th, 2014
...
Oct 5th, 2014
Dec 9th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer