Respuesta :

TheAnimeGirl

Answer:

[tex] - 3(a + 4)[/tex]

Solution,

[tex]3( - 2a - 4) + 3a \\ = 3 \times ( - 2a) - 3 \times 4 + 3a \\ = - 6a - 12 + 3a \\ = - 6a + 3a - 12 \\ = - 3a - 12 \\ = - 3(a + 4)[/tex]

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Answer:

-3(a+4)

Step-by-step explanation: