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: 20

Answer

z = 10

Work Step by Step

-4(z - 3) = 2 - 3z Apply distributive property: -4(z) - 4(-3) = 2 - 3z -4z + 12 = 2 - 3z Add 4z to both sides: 12 = 2 + z Subtract 2 from both sides: 10 = z Check with substitution: -4(10 - 3) = 2 - 3(10) -4(7) = 2 - 30 -28 = -28
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