SOLUTION: ahhh help - I lost my notes. I got (17,5) but how? 4x-y=3 9x-2y=11

Algebra ->  Linear-equations -> SOLUTION: ahhh help - I lost my notes. I got (17,5) but how? 4x-y=3 9x-2y=11      Log On


   

Question 745286: ahhh help - I lost my notes. I got (17,5) but how?
4x-y=3
9x-2y=11
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
4x-y=3
9x-2y=11
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Multiply thru the top equation by 2:
8x -2y = 6
9x -2y = 11
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Subtract and solve for "x":
x = 5
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Solve for "y":
4x - y = 3
4*5 - y = 3
y = 17
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Cheers,
Stan H.