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 - Problem Set 11.2 - Page 484: 27

Answer

The answer is below.

Work Step by Step

In order to solve this equation, we first solve for z in the bottom equation. Then, using the value of z in the bottom equation, we solve for the value of y in the middle equation. Then, using the values of y and z, we can solve for x in the upper equation.
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