Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.2 - 3 x 3 Systems of Equations - Concept Quiz 11.2 - Page 483: 7



Work Step by Step

In order to solve a system of three linear equations, we (1) first see if there are any equations that have only one variable in them. If so, we solve these equations first. (2) Next, we look for equations with two variables, and we attempt to solve those. (3) Finally, we solve the equations with three variables to find any remaining variables.
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