Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 51: 64

Answer

x = 0

Work Step by Step

0.5(x + 2) = 0.1 + 3(0.1x + 0.3) Expand the left side of the equation: 0.5(x + 2) = 0.5x + 1 Expand 3(0.1x + 0.3) = 0.3x + 0.9 Rewrite the equation: 0.5x + 1= 0.1 +0.3x + 0.9 Subtract 1 from both sides: 0.5x + 1 -1 = 0.1 +0.3x + 0.9 - 1 0.5x = 0.3x 0.5x - 0.3x = 0.3x - 0.3x 0.2x = 0 Divide both sides by 0.2: x = 0
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