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: 9



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.
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