3 years ago

15) n-4-9

Mathematics

1 answer:

marshall27 [118]3 years ago

6 0

Answer:

...

Step-by-step explanation:

15) n - 13

16) 3n

17) 12x - 9

18) -k

19) -20n

20) -4n

21) 3 - 21m

22) 16n + 18

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