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Solve the system using elimination. 5x + 8y = –29 7x – 2y = –67 A.(–7, 9) B.(-10,21/8) C. (–1, –3) D. (–9, 2)
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Asked 9/29/2012 10:17:07 AM
Updated 6/16/2014 8:01:17 AM
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User: Solve the system using elimination. 5x + 8y = –29 7x – 2y = –67 A.(–7, 9) B.(-10,21/8) C. (–1, –3) D. (–9, 2)





Weegy: B.(-10,21/8)
Expert answered|jeifunk|Points 6962|



Question
Asked 9/29/2012 10:17:07 AM
Updated 6/16/2014 8:01:17 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [6/16/2014 8:01:14 AM]
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5x + 8y = –29 (equation 1)
7x – 2y = –67 multiple 4 on both sides the result is:
28x - 8y = -268 (equation 2)
adding up equation 1 and 2 the result is:
33x = -297
x = -297/33 = -9
5(-9) + 8y = -29
8y = -29 + 45 = 16
y = 2
The solution for the system 5x + 8y = –29 7x – 2y = –67 is (-9, 2)
Added 6/16/2014 8:01:17 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [6/16/2014 9:03:44 AM]
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