Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

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

Answer

$12+9t$

Work Step by Step

Original expression: $8+(9t+4)$ Combine like terms. 8 and 4 are the only terms we can combine because there are no other $t\\$s in the expression. $8+4=12$ We are allowed to add these numbers because of the associative property of addition. The expression should now look like this: $9t+12$ It is impossible to simplify this further because all like terms have already been combined. So your final, simplified answer is $9t+12$.
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