Question

PLEASE If you know the answer tell me only if you are 200% you know the answer

Answer 1

Answer:

  -17x +2y

Step-by-step explanation:

  (-8x -8y) -(9x -10y) = -8x -8y -9x +10y

  = x(-8 -9) +y(-8+10)

  = -17x +2y

Answer 2

The expression obtained at the end is -17x+2y
Refer to the photo attached below for further explanation: