3x + y = 4 x - 2y = 3 The solution to the system of equations shown is ?

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Asked 5/20/2014 12:18:15 PM

Updated 5/20/2014 10:54:28 PM

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Flagged by yeswey [5/20/2014 10:51:27 PM]

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User: 3x + y = 4 x - 2y = 3 The solution to the system of equations shown is ?

Question

Asked 5/20/2014 12:18:15 PM

Updated 5/20/2014 10:54:28 PM

1 Answer/Comment

Flagged by yeswey [5/20/2014 10:51:27 PM]

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yeswey

3x + y = 4 multiple 2 on both sides the result is:
6x + 2y = 8 (the first equation)
x - 2y = 3 (the second equation)
adding up the first and the second equations the result is:
7x = 11,
x = 11/7,
y = 4 - 3x = 4 - 3(11/7) = 28/7 - 33/7 = -5/7
The solution for the system 3x + y = 4 x - 2y = 3 is (11/7, -5/7)

Added 5/20/2014 10:54:28 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/20/2014 11:05:07 PM]

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Weegy: In the equation x - y = 0 6x 5y = -22, the lines intersect at (2, -2). User: x - y = 0 6x + 5y = -22 The lines intersect at Weegy: In the equation x - y = 0 6x 5y = -22, the lines intersect at (2, -2). (More)

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Updated 5/20/2014 11:00:51 PM

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yeswey

x - y = 0, 6x + 5y = -22 The lines intersect at (-2, -2).
x - y = 0 multiple 5 on both sides the result is:
5x - 5y = 0 (equation 1)
6x + 5y = -22 (equation 2)
Adding up equation 1 and 2 the result is:
11x = -22
x = -2,
-2 - y = 0, y = -2.
The solution for the system is (-2, -2) which is also the intersecting point.

Added 5/20/2014 11:00:51 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/20/2014 11:04:54 PM]

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Updated 6/21/2014 9:46:12 AM

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yeswey

x - 3y = 0 (equation 1)
3y - 6 = 2x rearranging the equation in standard form:
-2x + 3y = 6 (equation 2)
adding up equation 1 and 2 the result is;
-x = 6
x = -6
-6 - 3y = 0
-3y = 6
y = -2
The solution for the system x - 3y = 0 3y - 6 = 2x is (-6, -2)

Added 6/21/2014 9:46:12 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [6/21/2014 9:51:37 AM]

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Updated 5/22/2014 5:54:21 AM

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