Answer
8.5
Work Step by Step
First, we add $3d$ and $-9$ to both sides. That gives us $4d=34$. Now we divide both sides by 4 and we get $d=8.5$.
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 1 - Expressions, Equations, and Inequalities - 1-4 Solving Equations - Practice and Problem-Solving Exercises - Page 30: 16
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