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6. Find conditions on b1, b2, bz such that the following system is consistent. X1 - x2 + 2x3 = b1 2x1 + 4x2

6. Find conditions on b1, b2, bz such that the following system is consistent. X1 - x2 + 2x3 = b1 2x1 + 4x2 4x3 = b2 -3x1 2x3 = b3

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