Question

4x+3y= -2
2x-2y= -8

Answer 1

are you familiar with the elimination method ?

Answer 2

no

Answer 3

Pick a variable out of both equations to eliminate it. Sometimes during this method you will need to multiply the equation by a certain number to make the variables eliminate . Which variable do you wish to eliminate ?

Answer 4

x or y ?

Answer 5

well i need both umm i guess "x"

Answer 6

x=-2
y=2
Using the substitution method;
proof:
http://www.mathway.com/answer.aspx?p=calg?p=4x+3ySMB01SMB15-2_2x-2ySMB01SMB15-8?p=167?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=SolveSMB15bySMB15SubstitutionSMB15Method

Answer 7

ok.....in both of your equations the x's are 4x and 2x...you need to make one of them 4x and the other one -4x.
4x + 3y = -2
2x - 2y - -8
what would you need to multiply by to make the second equation have a -4x ?

Answer 8

Using the substitution method is much easier you just get one equation and you substitute it into the second equation to get x and then y. do you understand @kaelyn14 ?

Answer 9

yes i do thanks (:
@AwesomeB & @texaschic101

Answer 10

can i get a medal :S

Answer 11

ya(: what do the medals do?

Answer 12

get you better smart scores

Answer 13

oh okay

Answer 14

For some reason I am stuck at 20 for such a long time

Answer 15

it will get better, just keep answering question.....better yet, explain them so the asker can understand.

Answer 16

Ok ty for the help :)

Answer 17

no problem :)

Answer 18

@AwesomeB the link you told me to go to i dont know how to type it in

Answer 19

mathway.com/problem.aspx?p=algebra

Answer 20

that just gives you the answer unless you pay to subscribe

Answer 21

I paid or you can try:
http://www.wolframalpha.com/

Answer 22

does it show you how to do it or does it just give you answers ?

Answer 23

why not just try to actually learn it

Answer 24

2x - 2y = -8
2x = 2y - 8
2x/2 = 2y/2 - 8/2
x = y - 4

now sub y -4 in for x in any of the original equations and solve for y.
Once you have found y, sub that back into the other equation and solve for x.