Elementary Algebra

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

Chapter 8 - Coordinate Geometry and Linear Systems - 8.6 - Elimination-by-Addition Method - Concept Quiz 8.6 - Page 377: 10

Answer

True

Work Step by Step

In order to solve using the elimination-by-addition method, we (1) multiply one or both of the equations by a nonzero constant so that when we add the two equations, one of the variables will cancel out. We then (2) add the two equations and (3) solve the resulting equation. Using the value of the variable found, we can then (4) solve for the other variable using either of the original two equations.
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