Respuesta :

Answer:

-4

Step-by-step explanation:

3x+1=-11

    -1   -1  

3x=-12

/3   /3

 x = -4

Answer:

x=-4  

Step-by-step explanation:

3x+1=-11

subtract one from both sides

3x+1= -11

    -1    -1

3x=-12

divide by 3 on both sides

3x/3     -12/3

x= -4