Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises - Page 98: 21

Answer

$r=6$

Work Step by Step

Start with the given equation: $64=8(r+2)$ We use the distributive property to expand the right side of the equation: $64=8r+16$ We subtract $16$ from both sides of the equation: $64-16=8r$ We combine like terms: $48=8r$ We divide by $8$ on both sides of the equation: $r=\frac{48}{8}=6$
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