SOLUTION: Solve this system of equations using any method. 3x – y = 4 x + 2y = 13 A. (3, 5) B. (5, 11) C. (4, 8) D. (–1, 7)

Algebra ->  Systems-of-equations -> SOLUTION: Solve this system of equations using any method. 3x – y = 4 x + 2y = 13 A. (3, 5) B. (5, 11) C. (4, 8) D. (–1, 7)      Log On


   



Question 1033675: Solve this system of equations using any method.

3x – y = 4
x + 2y = 13

A.
(3, 5)

B.
(5, 11)

C.
(4, 8)

D.
(–1, 7)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve this system of equations using any method.
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3x – y = 4
x + 2y = 13
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Multiply thru the top equation by 2 to get:
6x - 2y = 8
x + 2y = 13
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Add and solve for "x":
7x = 21
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x = 3
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Solve for "y":
3 + 2y = 13
2y = 10
y = 5
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Ans: (3,5)
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Cheers,
Stan H.
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