Respuesta :

Answer:

x=−3

Step-by-step explanation:

Answer:

[tex]x = 3[/tex]

Step-by-step explanation:

[tex]4x + 9 = - 3[/tex]

[tex]4x = 9 +( - 3)[/tex]

[tex]4x = 12[/tex]

[tex]x = 3[/tex]