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steposvetlana [31]
3 years ago
15

If 1+4=5 and 2+5=12 and 3+6=21what does 8+11=

Mathematics
1 answer:
creativ13 [48]3 years ago
4 0
12-5=7
21-12=9
x-21=11
21+11=32
x=32
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