Solve the system using the inverse that is given for the coefficient matrix.

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2x + 6y + 6z = 8
2x + 7y + 6z =10
2x + 7y + 7z = 9

    The inverse of:
 2         2       6

2         7       6

2          7       7

is

7/2, 0, -3

-1, 1, 0

0, -1, 1

A. {(1, 2, -1)}

B. {(2, 1, -1)}

C. {(1, 2, 0)}

D. {(1, 3, -1)}

Oct 18th, 2017

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A. {(1, 2, -1)}



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Jun 3rd, 2015

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