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3. For each (b, b2, b3) E R, show that the following system has a unique solution. x1 + 2x3 -3x1 + 4x2 +

3. For each (b, b2, b3) E R, show that the following system has a unique solution. x1 + 2x3 -3x1 + 4x2 + 6x3 = b2 -x1 2x2 + 3x3 = b3

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