College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.1 - Page 602: 60


Makes sense.

Work Step by Step

We use row operations on the augmented matrix to obtain a matrix in row-echelon form. The row operations are that the elements in any row can be multiplied by a non-zero number, and these can be added/subtracted to any other row. Thus the statement makes sense.
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