Suppose that

is used to transform a matrix. Determine the row operation that will transform the matrix back to its original form. Use R1, R2, etc. to represent the rows , , etc. For example, if the required operation were "add 2 times row 4 to row 6" then the answer would be "". If it were "swap row 4 with row 6" the answer would be "".

Answer:

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