Respuesta :

Answer:

-3x+4y-6

Step-by-step explanation:

First, combine all like terms.

In 7x - 2y - 1 + 6y - 10x - 5 there are two of the same terms.

7x-10x=-3x

-2y+6y= 4y

-1-5= -6

So, it will be -3x+4y-6