Mathematics, 18.05.2021 19:00, shannonderemer

The matrix below represents a system of equations ( 2 -1 -3 -20 -2 -6 6 -4 0 3 -2 -9). Which matrix represents 1/2R2+R3-R3 ?

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The matrix below represents a system of equations ( 2 -1 -3 -20 -2 -6 6 -4 0 3 -2 -9). Which matrix...