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 1.4 - Basic Rules of Algebra - Exercise Set - Page 54: 74

Answer

$9(3+x),$ simplifies to $\quad 27+9x$

Work Step by Step

" nine times..."$\rightarrow 9\cdot(...)$ "...the sum of $3$ and a number" $\rightarrow (3+x)$ the expression translates to$:\qquad 9(3+x)$ Using the distributive property, $9(3+x)=9\cdot 3+9x$ = $27+9x$
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