Respuesta :

Answer:

-4t

Step-by-step explanation:

9-t-3(t+3)

use distributive property and simplify

= 9-t-3t-9

= -4t

9-t-3(t+3)
Distribute
9 - t -3t - 9
Combine like terms
9-9=0 -t -3t=-4t
Answer: -4t