Need help with Elimination Method Plz Help? :)

[From: ] [author: ] [Date: 11-05-14] [Hit: ]

solve for y and plug that value in equation 1 or the equation above in which i solved for x-I have this same problem for my homework tonight........

I need help on how to do these
7x-4y=33
6x-7y=14
How would i do this and put the answer in an ordered pair and thank you for your time :)

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(7x-4y=33)*7
(6x-7y=14)*4

49x-28y=231
-(24x-28y=56)

25x=175

x=7

7(7)-4y=33 (plug 7 in for x)
49-4y=33
-4y=-16
y=4

(7,4) is your answer

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**** man, simple substitution. Which grade are u in? alright ill do it anyways -.-

x=(33+4y)/7 <----- from equation1

plug that into equation2 for x

6/7(33+4y)-7y=14
solve for y and plug that value in equation 1 or the equation above in which i solved for x

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I have this same problem for my homework tonight.. lol

1

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