Prealgebra (7th Edition)

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

Chapter 3 - Review: 47

Answer

$x=21$

Work Step by Step

$2x+5=7x-100$ $\longrightarrow$addition property $2x+5-2x+100=7x-100-2x+100$ $\longrightarrow$ combine like terms $105=5x$ $\longrightarrow$multiplication property $105\div5=5x\div5$ $\longrightarrow$simplify $21=x$
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