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example of A system comprising two linear equations in two variables has a unique solution if and only if the straight lines represented by the equations are nonparallel
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Asked 9/11/2012 6:55:43 PM
Updated 12/14/2014 8:18:25 AM
2 Answers/Comments
This conversation has been flagged as incorrect.
Flagged by yeswey [12/14/2014 8:15:42 AM]
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User: example of A system comprising two linear equations in two variables has a unique solution if and only if the straight lines represented by the equations are nonparallel

Weegy: using an example: if the straight lines are parallel then the 2 equations will be like this: 1) 3x + 6y 2) 6x+ 12y they will be at a multiple of each other resulting in the same solution. So for a unique solution you are gonna need a non parallel [ solution. ]
thewizard|Points 34|

User: example Suppose the straight lines represented by a system of two linear equations in two variables are parallel to each other. Then the system has infinitely many solutions

User: example of a and b as square matrix

User: x - 3y = -6

Weegy: C. ?
mythmoh|Points 5309|

User: x - 3y = -6 5x + 3y = 42

User: is this a unique solution x - 3y = -6 5x + 3y = 42

Weegy: x = 3 and y = -4 so the ordered pair is (3,-4)
theresearcher|Points 2086|

User: x - 3y = -6 5x + 3y = 42 what is x and y

Question
Asked 9/11/2012 6:55:43 PM
Updated 12/14/2014 8:18:25 AM
2 Answers/Comments
This conversation has been flagged as incorrect.
Flagged by yeswey [12/14/2014 8:15:42 AM]
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8
x - 3y = -6
5x + 3y = 42
adding up equations the result is:
6x = 36
x = 36/6 = 6
6 - 3y = -6
-3y = -6 - 6 = -12
y = -12/-3 = 4
The solution for the system x - 3y = -6 5x + 3y = 42 is (6, 4)
Added 12/14/2014 8:18:25 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [12/14/2014 1:35:39 PM]
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