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 13: 91



Work Step by Step

Note before we start: $5x $ means $5\cdot x.$ First, rewrite the expression, replacing x with the number $3$, $2+5x$ $=2+5(3)$ Since multiplication is done before addition, multiply $5$ and $3$, $=2+15$ finally, add the numbers $=17$
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