Question

Using elimination solve this.

x + y - 4 = 0
2x = 8 + 2y

Answer 1

I got x=-6 and y = idk

Answer 2

@HawkCrimson Can u umm help?

Answer 3

Can you show me how u got it?

Answer 4

Well idk if i didn't right in the first place. Idk how to find y, which means i more likely got x wrong-_- Sry

Answer 5

Oh okay then. Thanks for trying =D

Answer 6

sure im here :)

Answer 7

brb

Answer 8

back, ok ill solve it now

Answer 9

i normally like doing the substitution method but ill do it in elimination for u instead

Answer 10

Here you can check your answer >> http://calculator.tutorvista.com/math/470/elimination-method-calculator.html

Answer 11

ik how to do it using the substituting method but im not sure for the eliminating method :/

Answer 12

Sry tht i mentioned u.

Answer 13

-_- i take that as a challenge!

Answer 14

cause i remember that u have to make make the two equations the same then subtract then from each other

Answer 15

--_--

Answer 16

Alright just show me the substitution way

Answer 17

lol ok!

Answer 18

x = 4 - y
2x = 8 + 2y
Therefore,
2(4 - y) = 8 + 2y
8 - 2y = 8 +2y
4y = 0
y = 0
Then,
x = 4 - 0
x=4