Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 50: 39

Answer

identity

Work Step by Step

Distribute 9 then combine like terms on each side to obtain: $5x+9 = 9x+9-4x \\5x+9 = 5x+9$ Subtract $5x$ on both sides of the equation to obtain: $9=9$ This is a true statement therefore the given equation is an identity.
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