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 483: 5

Answer

In order to solve a system of three linear equations, we first isolate one of the variables. After solving for this variable, we use its value to solve for the other variables. (Note, the numbers to the left of the work are the equation numbers, where the top equation in the system is equation one while the bottom equation in the system, as listed in the textbook, is equation three.)

Work Step by Step

In order to solve a system of three linear equations, we first isolate one of the variables. After solving for this variable, we use its value to solve for the other variables. (Note, the numbers to the left of the work are the equation numbers, where the top equation in the system is equation one while the bottom equation in the system, as listed in the textbook, is equation three.) In order to solve a system of three linear equations, we first isolate one of the variables. After solving for this variable, we use its value to solve for the other variables.
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