Answer
$$3x-12$$
Work Step by Step
1. "A number": $x$
2. "Three times a number": $3x$
3. "Twelve minus": $-12$
4. "Twelve, minus three times a number": $3x-12$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 1 - Section 1.2 - Algebraic Expressions and Sets of Numbers - Exercise Set - Page 16: 83
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