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Find the elementary matrix E such that EC = A where 2 4 1 2 4 1A = 4 -2 -2 and c= 4 -2

Find the elementary matrix E such that EC = A where 2 4 1 2 4 1A = 4 -2 -2 and c= 4 -2 -2 6 -7 3 -2 -23 -1

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