SOLUTION: Solve using row operations: x + 2y = 10; 3x +4y = 8

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Question 752369: Solve using row operations: x + 2y = 10; 3x +4y = 8
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve using row operations:
x + 2y = 10
3x +4y = 8
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Subtract 3 times the 1st row from the 2nd row to get:
x + 2y = 10
0 - 2y = -22
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Divide thru the 2nd row by -2 to get:
x + 2y = 10
0 + y = 11
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Subtract 2 times the 2nd row from the 1st row to get:
x + 0 = -12
0 + y = 11
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Cheers,
Stan H.
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