Respuesta :

Answer:

-7y + 8x

Step-by-step explanation:

The given expression is

[tex](-4y-x)-(3y-9x)[/tex]

To find the equivalent expression, we have to reduce like terms as follows

[tex](-4y-x)-(3y-9x)\\-4y-x-3y+9x\\-4y-3y-x+9x\\-y(4+3)-x(1-9x)\\-7y+8x[/tex]

So, the equivalent expression is

[tex](-4y-x)-(3y-9x)=-7y+8x[/tex]

Therefore, among the options, the right choice is the second one.

Answer:

-7y + 8x

Step-by-step explanation:

Just took the test