College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.1 - Linear Equations - 1.1 Exercises - Page 85: 34


The equation is an identity.

Work Step by Step

Distribute through the parenthesis. $-0.6x+3+0.8x-4.8=0.2x-1.8$ Add/Subtract like terms. $0.2x-1.8=0.2x-1.8$ Subtract $0.2x$ and add $1.8$ to each side. Because you are left with the equal constants, any value of $x$ will satisfy the given conditions, therefore making the equation an identity. $0=0$
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