Start with the following matrix: -8 -7 10 -4 -7 1 -8 -9 -4 Perform the following 3 elementary row operations, one after the other, and give the resulting matrix at each step: a) Add -1 times row 3 to row 2 00 0 0 0 0 0 0 0 b) Multiply row 2 by -8 00 0 0 0 0 0 0 0 c) Interchange rows 1 and 2 00 0 00 0 0 0 0

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