## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises - Page 27: 22

#### Answer

$105x+9$

#### Work Step by Step

Original expression: $4+(105x+5)$ Combine like terms. 4 and 5 are the only terms we can combine because there are no other variables in the expression. We can add these because of the associative property of addition. $5+4=9$ The expression should now look like this: $105x+9$ It is impossible to simplify this further because all like terms have already been combined. So your final, simplified answer is $105x+9$.

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