Respuesta :

sqdancefan

Answer:

  -17x +2y

Step-by-step explanation:

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

  = x(-8 -9) +y(-8+10)

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