Respuesta :

Answer:

B. -7y + 8x.

Step-by-step explanation:

(-4y - x) - (3y - 9x)

Distributing the negative over the second parentheses we get:

-4y - x - 3y + 9x

= -7y + 8x.

Answer:

B

Step-by-step explanation:

Right in edge2020