College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.1 - Linear Equations - 1.1 Assess Your Understanding: 30

Answer

$x=-1$

Work Step by Step

$7-(2x-1)=10$ $\longrightarrow$ distributive property $7-2x+1=10$ $\longrightarrow$ combine like terms $8-2x=10$ $\longrightarrow$ addition property of equality $8-2x-8=10-8$ $\longrightarrow$ combine like terms $-2x=2$ $\longrightarrow$ multiplication property of equality $-2x\div-2=2\div-2$ $\longrightarrow$ simplify $x=-1$
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