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geniusboy [140]
3 years ago
6

7) 11r - 12r

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0

7. -r

8. 11v

9. -19x

10. 6p

11. 16n

12. -4n -5

13. 15r

14. 9n + 1

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