Answer
$8-3(x+6)=-10-3x$
Work Step by Step
"Eight decreased by...."
$8-...$
"...three times the sum of a number and six"
$... 3(x+6)$
Expression:
$8-3(x+6)$
Simplified,
$8-3(x+6)=8-3x-18=-10-3x$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 6 - Algebra: Equations and Inequalities - 6.3 Applications of Linear Equations - Exercise Set 6.3 - Page 373: 18
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