Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1-11 - Cumulative Review - Page 776: 10

Answer

$x=7$

Work Step by Step

Using $a(b+c)=ab+ac$ or the Distributive Property, the given equation, $ 2(5x-3)-8x=4-(3-x) ,$ is equivalent to \begin{align*} 2(5x)+2(-3)-8x&=4-1(3)-1(-x) \\ 10x-6-8x&=4-3+x \\ (10x-8x)-6&=(4-3)+x \\ 2x-6&=1+x .\end{align*} Using the properties of equality, the equation above is equivalent to \begin{align*} 2x-x&=1+6 \\ x&=7 .\end{align*} Hence, the solution to the given equation is $ x=7 $.
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