Use a calculator to approximate the reduced row-echelon form of the augmented matrix representing are rounded to 2 decimal places. -1.58x 4.35y 4.91z67.10 7.36x + 3.13y 6.12z84.49 0.257x + 0.152y + 0.401z = 4.04 The approximate solution set is {}. X Ś

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