Question 532313
x + y = 517
2x + 3y = 1037 
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Multiply thru 1st equation by 2 to get:
2x + 2y = 2*517
2x + 3y = 1037
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Subtract and solve for "y":
y = 3
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Solve for "x":
x + y = 517
x + 3 = 517
x = 514
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Solution: (514,3)
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Cheers,
Stan H.
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