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Phoenix [80]
3 years ago
15

Please help i give brainliest

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
5 0

Answer:

21

Step-by-step explanation:

His number is 21

21 - 12 = 9

9 times -2 = -18

Hope this helps!!

olga_2 [115]3 years ago
4 0

Answer:

21

_____________________

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