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Question 245807: Can some one please help me out?
I'm suppose to solve the system by elimination and the solution is an ordered pair of fractions that is simplified.
5x+3y=-11
7x-2y=13
Pleeese help!!!Thank You
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! solve the system by elimination and the solution is an ordered pair of fractions that is simplified.
5x+3y=-11
7x-2y=13
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Let's say you want to eliminate the y-terms.
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Multiply thru the 1st equation by 2
Multiply thru the 2nd equation by 3
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10x+6y = -22
21x-6y = 39
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Add the two equation:
31x = 17
x = 17/31
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Cheers,
Stan H.
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Substitute into either of the two original equations to solve for "y":
7(17/31)-2y = 13
2y = 7(17/31)-13
y = -142/31
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Ans: (17/31 , -142/31)
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Cheers,
Stan H.
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