Algebra 1

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

Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises: 20

Answer

$9t+12$

Work Step by Step

We start with the given expression: $8+(9t+4)$ The commutative property of addition states that changing the order of the addends does not affect the sum. We use this property to rearrange the addends: $(9t+4)+8$ The associative property of addition states that changing the grouping of the addends does not affect the sum. We use this property to change the grouping of the addends: $9t+(4+8)$ We use the order of operations to simplify: We simplify within the parentheses: $9t+12$
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