Algebra: A Combined Approach (4th Edition)

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

Chapter 2 - Section 2.1 - The Additon Property of Equality - Exercise Set: 14

Answer

n = 7

Work Step by Step

3n + 2n = 7 + 4n Combine like terms: 5n = 7 + 4n Subtract 4n from both sides: n = 7 Check with substitution: 3(7) + 2(7) = 7 + 4(7) 21 + 14 = 7 + 28 35 = 35
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