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: 63

Answer

$20-x=5$

Work Step by Step

Let x represent "a number". "Difference" tells us the operation is subtraction. "Is" tells us to put an equal sign between the expression before "is" and the expression after "is".
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