SOLUTION: What is the y-value in the solution to the system {x+y=4}{2x-2y=0}

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Question 333563: What is the y-value in the solution to the system {x+y=4}{2x-2y=0}
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the y-value in the solution to the system {x+y=4}{2x-2y=0}
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x+y = 4
2x-2y = 0
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Multiply thru 1st equation by 2 to get:
2x+2y = 8
2x-2y = 0
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Subtract 2nd eq. from 1st and solve for "y":
4y =8
y = 2
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Cheers,
Stan H.