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snow_tiger [21]
3 years ago
11

-21+2(3-15)-(-3)(+7)+(-3)(-8)​

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

- 21 + 2(3 - 15) - ( - 3)( + 7) + ( - 3)( - 8) \\  =  - 21 - 24 + 21 + 24 \\  = 0

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