Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 9 - Basic Algebra - Review Exercises - Page 698: 78

Answer

$r=1$

Work Step by Step

We are given the equation $-8=-9+r$. In order to solve, we must add 9 to both sides. $-8+9=-9+r+9$ Therefore, $r=1$.
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