Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.4 - Linear Equations in One Variable and Problem Solving - Exercise Set: 16

Answer

$8-x=15\div5$ $x=5$

Work Step by Step

"Decreased by" indicates subtraction. "Quotient" indicates division. $8-x=15\div5$ $\longrightarrow$divide $8-x=3$ $\longrightarrow$addition property $8-x-8=3-8$ $\longrightarrow$simplify $-x=-5$ $\longrightarrow$multipliccation property $-x(-1)=(-5)(-1)$ $\longrightarrow$simplify $x=5$
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