If a+b+c=8 and x+y=7 what is - 8y-2c-2b-8x-2a

-40

Step-by-step explanation:

Try rearranging and factoring - 8y-2c-2b-8x-2a:

This is equal to - 8 (x + y) - 2 (a + b + c).

Since x + y = 7, we have:

-8 (7) - 2 (a + b + c)

and since a + b + c = 8, we end up with:

-56 - 2 (8), or

-56 - 16 = - 40