Answer
$(a+b)+c=a+(b+c)$
Work Step by Step
The associative property of addition says that the way addends are grouped does not change the sum.Therefore, it is true that: $ \\\\(a+b)+c=a+(b+c)$
Algebra 1
by Hall, Prentice
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 - Page 66: 50
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