Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-9 Patterns, Equations, and Graphs - Mixed Review: 53

Answer

9

Work Step by Step

When we add a positive and a negative number, the positive number gets smaller. Therefore, it follows that: $12+(-3)=9$
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