Respuesta :

it =3 
   because 3+11(9)-9(11)
                    3+99-99
                    3+0 or 102-99
                        equals 3

Answer:

3

Step-by-step explanation:

Let's substitute t = 9 and u  = 11 into the expression.

3+11t−9u

=3+11(9)−9(11)

=3+99-99=3+99−99

=3