Back to 11.6 Solving Systems with Gaussian Elimination

11.6 Exercise 26

Avg difficulty 2.5

Is there only one correct method of using row operations on a matrix? Try to explain two different row operations possible to solve the augmented matrix $\begin{bmatrix} 9 & 3 \\ 1 & - 2 \textrm{ } \left|\right. \textrm{ } 0 \\ 6 \end{bmatrix} .$

OpenStax Algebra and Trigonometry 2e, 11.6 Solving Systems with Gaussian Elimination, exercise 26

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.