SOLUTION: describe and correct the error in solving the linear system. 9x + 8y = 11 and 7x + 6y = 9

Question 856805: describe and correct the error in solving the linear system. 9x + 8y = 11 and 7x + 6y = 9
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
9x + 8y = 11
7x + 6y = 9
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Modify for elimination:
63x + 56y = 77
63x + 53y = 81
==========
Subtract and solve for "y":
3y = -4
y = -4/3
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Solve for "x":
7x + 6y = 9
7x + 6(-4/3) = (27/3)
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7x = 51/3
x = 51/21
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Cheers,
Stan H.
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