Respuesta :

[tex]\boxed{-7b-9k+6}[/tex]

Explanation:

We have the following expression:

[tex]-4b+(-9k)-6-3b+12[/tex]

First of all, we need to open parentheses:

[tex]-4b-9k-6-3b+12[/tex]

Next, combine like terms:

[tex]-4b-3b-9k-6+12 \\ \\ \therefore \boxed{-7b-9k+6}[/tex]

Learn more:

Simplify expressions: https://brainly.com/question/13378777

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