500x(-18)-8000:16+700=

500 × (-18) – 8.000 : 16 + 700
= – 9.000 – 500 + 700
= – 8.800

500 x (-18) – 8000 : 16 + 700
= -9000 – 500 + 700
= -9500 + 700
= -8800