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OpenStudy (anonymous):
4 3 -5|11 1 1 2|0 2 4 9|14 A. 4x - 3y + 5z = 11 x - y - 2z = 0 2x + 9y + 4z = 14 B. 4x + 3y - 5z = 11 x - y - 2z = 0 2x + 4y + 9z = 14 C. 4x + 3y - 5z = 11 -x + 2y + z = 0 2x + 4y + 9z = 14 Is the answer B?
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OpenStudy (anonymous):
Just look at all the coefficients and pick the one that matches the matrix.
OpenStudy (anonymous):
I just wanted to double check..
OpenStudy (anonymous):
The signs of the second equation in B don't match up.
OpenStudy (anonymous):
How do they not?
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