I need to answer the blank ones who can help me?

Answer:
1st blank question -269
Second blank question -9
Third blank question -8
Step-by-step explanation:
b=+19=-250 reverse effect 250+19 -269+19=250
-3x-9= 27 negative negative equals positive therfore is 27
8u=-64 8x-8 equal -64
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