Identify the elementary row operation being performed to obtain the new row-equivalent matrix.
?
Original Matrix New Row-Equivalent Matrix
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A. Add 4 times Row 2 to Row 1.
B. Add 5 times Row 2 to Row 1.
C. Add 9 times Row 1 to Row 2.
D. Add 4 times Row 1 to Row 2.
E. Add 5 times Row 1 to Row 2.
Answer: D
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