Respuesta :

Answer:

[tex]2[/tex]

Step-by-step explanation:

[tex]-3x-7(x=-3)[/tex]

[tex](-3)(-3)-7[/tex]

Rewrite:

[tex](-3*-3)-7[/tex]

Now solve:

[tex](-3*-3)=9\\9-7=2[/tex]

2 is your answer.