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: 27

Answer

$7d+1.2$

Work Step by Step

We start with the given expression: $1.1+(7d+0.1)$ 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: $(7d+0.1)+1.1$ The associative property of addition states that changing the grouping of the addends does not affect the sum. We use this property to group the addends differently: $7d+(0.1+1.1)$ We use the order of operations to simplify: We simplify inside the parentheses: $7d+1.2$
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