Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.1 - Introduction to Algebra: Variables and Mathematical Models - Exercise Set - Page 11: 50



Work Step by Step

$\frac{r}{9}$ =7;63 To check whether 63 is the solution of the given expression, Substitute 63 for r $\frac{63}{9}$ =7 (divide $\frac{63}{9}$) 7=7 The statement is true because the values on both sides of the equation are same, the number 63 is the solution of the equation.
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