Algebra 1

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

Chapter 1 - Foundations for Algebra - 1-2 Order of Operations and Evaluating Expressions - Practice and Problem-Solving Exercises - Page 15: 56

Answer

$9+3-(2+4)$

Work Step by Step

The order of operations states that first we perform operations inside grouping symbols, such as parentheses, brackets, and fraction bars. Then, we simplify powers. Then, we multiply and divide from left to right. Finally, we add and subtract from left to right. When we put parentheses around the $2+4$, the order of operations require us to add these numbers first. This leaves us with $9+3-6$ When we add these terms from left to right, we are left with $6$, making the equation true.
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