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Score: Solve this system algebraically. 7x - 2y = 4 5y + 3x = 10
Question
Asked 5/2/2013 11:58:02 AM
Updated 6/23/2014 9:40:36 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [6/23/2014 9:34:32 PM]
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User: Score: Solve this system algebraically. 7x - 2y = 4 5y + 3x = 10

Weegy: wait let me calculate :)
alamsher|Points 135|

User: Score: Solve this system algebraically. 7x - 2y = 4 5y + 3x = 10





Weegy: i am sorry but is not working to copy and paste all signs so please follow the link and you will see the entire solution, thank you
Expert answered|Marvel2|Points 253|

Question
Asked 5/2/2013 11:58:02 AM
Updated 6/23/2014 9:40:36 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [6/23/2014 9:34:32 PM]
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3
7x - 2y = 4 multiply 5 on both sides:
35x - 10y = 20 (equation 1)
5y + 3x = 10 rearranging equation:
3x + 5y = 10 multiply 2 on both sides:
6x + 10y = 20 (equation 2)
adding up equation 1 and 2 the result is:
41x = 40
x = 40/41
7(40/41) - 2y = 4
280/41 - 2y = 4
2y = 280/41 - 4 = 280/41 - 164/41 = 116/41
y = (116/41)/2 = 58/41
The solution for the system 7x - 2y = 4 5y + 3x = 10 is (40/41, 58/41)
Added 6/23/2014 9:40:36 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/23/2014 9:45:57 PM]
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