In Exercises 912, write the system of linear equations represented by the augmented matrix. Use x, y,

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In Exercises 9–12, write the system of linear equations represented by the augmented matrix. Use x, y, and z, or, if necessary, w, x, y, and z, for the variables.

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College Algebra

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In Exercises 912, write the system of linear equations represented by the augmented matrix. Use x, y,

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7 0 4 01 -5 27 0 -13 11 6

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College Algebra

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