Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.3 - Further Solving Linear Equations - Exercise Set - Page 118: 11

Answer

a = -1

Work Step by Step

8 - 2(a + 1) = 9 + a Apply distributive property: 8 - 2(a) - 2(1) = 9 + a Simplify: 8 - 2a - 2 = 9 + a -2a + 6 = 9 + a Subtract a from both sides: -3a + 6 = 9 Subtract 6 from both sides: -3a = 3 Divide both sides by -3: a = -1
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