Enter in Question 2 the matrix entry in row 2 for the first column that does not contain a leading 1. One issue that arises in doing numerical row-reduction is recognizing entries of 0. Due to round-off error, entries that would be exactly 0 if the calculation were done exactly may be very small but not exactly 0. For the purposes of this question, treat any number smaller than 10 -6 as 0. Enter in Question 3 the value of x 1 if you give all arbitrary variables the value 3.
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