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lyudmila [28]
3 years ago
14

What is the pattern for 21,15,9,3

Mathematics
2 answers:
e-lub [12.9K]3 years ago
7 0
Subtract 6 from the previous number
jeka57 [31]3 years ago
7 0

Answer: 6

Step-by-step explanation:

3 add 6 you get 9. 9 add 6 you get 15. 15 add 6 you get 21 and so on

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