Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Section 4.2 - Solving Systems of Linear Equations by Substitution - Exercise Set: 4

Answer

x = -2 y = 8

Work Step by Step

Substitute y for -4x to the first equation. x - 4x = 6 -3x = 6 x = -2 (divide both sides by -3 ) Substitute x= -2 to the second equation. y = -4 $\times-2$ y = 8
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