College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.2: 58

Answer

$x=6$

Work Step by Step

If you have trouble following the steps below, please review the order of operations (PEMDAS) or the distributive property. Note that, because we are told that $y=0$, the expression involving $x$ is also equal to zero. $y=2[3x-(4x-6)]-5(x-6)=0$ $2(3x-4x+6)-5x+30=0$ $2(-x+6)-5x+30=0$ $-2x+12-5x+30=0$ $-7x+42=0$ $7x=42$ $x=6$
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