Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.3 - Solving Linear Equations - Exercise Set: 52

Answer

x=20

Work Step by Step

0.1(x+80)=14-0.2x 0.1x+8=14-0.2x 0.1x+0.2x+8=14 0.3x+8=14 0.3x=14-8 0.3x=6 10(0.3x)=10(6) 3x=60 x=60$\div$3 x=20 Check the answer. 0.1(20+80)=14-0.2(20) 0.1(100)=14-4 10=10
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