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Simplify the expression: $\newline$ $(3 + z) + -9 =$ _____

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Simplify variable expressions using properties

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Q. Simplify the expression:

\newline

(3 + z) + -9 =

_____

Write Down Given Expression: First, let's write down what we got: 3 + z) + -9\. We gotta combine like terms, so let's put the numbers together and keep the \$z where it is. So it's like $3 + z - 9$ .
Combine Like Terms: Now, we do the simple math with the numbers. $3 - 9$ is $-6$ , right? So we got $z + (-6)$ , which is the same as $z - 6$ .
Perform Simple Math: Oops, we're done! That was quick. So the simplified expression is $z - 6$ . No more steps needed.

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