Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 1 - Section 1.1 - Linear Equations in One Variable - 1.1 Exercises - Page 52: 49

Answer

All real numbers; identity

Work Step by Step

1. Given: 7[2 - (3 + 4x)] - 2x = - 9 + 2(1 - 15x) 2. Apply Distributive Property: 7(2 - 3 - 4x) - 2x = -9 + 2 - 30x 14 - 21 - 28x - 2x = -9 + 2 - 30x 3. Add and subtract:-30x - 7 = -30x - 7 The equation is an identity, so there are an infinite number of solutions (solution set is all real numbers)
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