Answer
Substitution method
Work Step by Step
In the second equation, we see that one of the variables is already isolated by itself. Thus, we see that the substitution method will be the most effective.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 8 - Systems of Linear Equations and Problem Solving - Review Exercises: Chapter 8 - Page 570: 1
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