answersLogoWhite

0

You multiply one or both equations by some constant (especially chosen for the next step), and add the two resulting equations together. Here is an example:

(1) 5x + 2y = 7

(2) 2x + y = 3

Multiply equation (2) by -2; this factor was chosen to eliminate "y" from the resulting equations:

(1) 5x + 2y = 7

(2) -2x -2y = -6

Add the two equations together:

3x = 1

Solve this for "x", then replace the result in any of the two original equations to solve for "y".

User Avatar

Wiki User

10y ago

Still curious? Ask our experts.

Chat with our AI personalities

BeauBeau
You're doing better than you think!
Chat with Beau
LaoLao
The path is yours to walk; I am only here to hold up a mirror.
Chat with Lao
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin

Add your answer:

Earn +20 pts
Q: How do you solve linear equations by using elimination?
Write your answer...
Submit
Still have questions?
magnify glass
imp