Intermediate Algebra: Connecting Concepts through Application

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: 72



Work Step by Step

$-4p+21=13$ $-4p+21-21=13-21$ (Subtracting $21$ from both sides) $-4p=-8$ $4p=8$ $p=\frac{8}{4}=2$
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