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 - Page 195: 18


$3x=2(x+5)$ $x=10$

Work Step by Step

"Product" indicates multiplication. "Twice" indicates multiplication by 2. "Sum" indicates addition. $3x=2(x+5)$ $\longrightarrow$distributive property $3x=2x+10$ $\longrightarrow$addition property $3x-2x=2x+10-2x$ $\longrightarrow$simplify $x=10$
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