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 - Page 141: 11



Work Step by Step

$38=30-2(x-1)$ $38+2(x-1)=30$ $2(x-1)=30-38$ $2(x-1)=-8$ $2x-2=-8$ $2x=-8+2$ $2x=-6$ $2x\div2=-6\div2$ $x=-3$ Check the answer. 38=30-2(-3-1) 38=30-2(-4) 38=30+8 38=38
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