Question

2) When is it best to solve a system using elimination

Answer 1

When it's easy to make a variables or when its very hard to solve by substitution. For example:
2x - y = 8
-x + 3y = 4

This is a good system to use elimination on because its very easy to multiply the bottom equation by 2 and then add to eliminate the x's.
4x^2 + 6y^2 = 10
3x^2 - 3y^2 = 5

This is also a good candidiate for the elimnation method because it would be very hard to do by substitution.

Answer 2

Hello @Ammart98 Welcome Openstudy :)

Answer 3

*to

Answer 4

Thank you

Answer 5

Mhm ^_^

Answer 6

._.

Answer 7

btw if you have any questions or concerns on the site feel free to PM me or anyone else with an A next to their name, or any mods that are enclosed in purple :)
Hope you enjoy the site.

Answer 8

Thanks psymon ;D

Answer 9

haha, of course xD