Answer
$d=42$
Work Step by Step
Step 1: $\frac{d-9}{3}=11$
Step 2: Multiply both sides by 3: $\frac{d-9}{3}\times3=11\times3$.
Step 3: $d-9=33$
Step 4: Add 9 to both sides: $d-9+9=33+9$.
Step 5: $d=42$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Appendix A - Basic Algebra Review - A Exercises - Page A-15: 78
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