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iragen [17]
3 years ago
6

Help fast plsssssssssss

Mathematics
2 answers:
Vilka [71]3 years ago
8 0

Answer:

- and -. =+ so-9+12=3

Step-by-step explanation:

the minus changes to plus and then we solve

bearhunter [10]3 years ago
4 0
-9-(-12)=-9+12=3
-9-12=-9+(-12)=-21
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