Respuesta :

Answer:

12<n​

Step-by-step explanation:

11+n+9+3n<9n-3n-4​

Combine like terms

20+4n<6n-4​

Subtract 4n from each side

20+4n-4n<6n-4n-4

20 < 2n-4

Add 4to each side

20+4 < 2n-4+4

24 < 2n

Divide by 2

12<n​