Respuesta :

Answer:

-3xy + 18y

Explanation:

9xy−12xy+18y

=9xy+−12xy+18y

Combine Like Terms:

=9xy+−12xy+18y

=(9xy+−12xy)+(18y)

=−3xy+18y

Answer:

=−3xy + 18y

Answer:

-3xy + 18y

Step-by-step explanation: