Respuesta :

We need to subtract both expressions, then simplify it and make only one expression:

First, subtract both expressions:

[tex](-3x+9y)-(8x-6y)[/tex]

Then:

[tex]-3x+9y-8x+6y[/tex]

Now, simplify like terms:

[tex]-11x+15y[/tex]

Therefore, the result expression is -11x+15y.