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: 45

Answer

x = 7

Work Step by Step

1. Given: -[2x - (5x + 2)] = 2 + (2x + 7) 2. Apply Distributive Property: -(2x - 5x - 2) = 2 + 2x + 7 -2x + 5x + 2 = 2 + 2x + 7 3. Add and subtract: x = 7 4. Check: -[2*7 - (5*7 + 2)] = 2 + (2*7 + 7) 23 = 23, so 7 is a solution of the equation.
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