Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.1 - Linear Equations in One Variable - Exercise Set - Page 56: 83

Answer

For the first, no value of x works; for the second, all values for x work.

Work Step by Step

The first: $x+7=x+6$ $0=1$ This is false. The second: $x+7=x+7$ $0=0$ This is always true; thus any value for x works.
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