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notsponge [240]
3 years ago
5

Help as soon as you can :d

Mathematics
2 answers:
aleksklad [387]3 years ago
8 0

Answer:

18n+9

Step-by-step explanation:

9(2n+1)

multiply 9 with 2n

9 x 2n = 18n

multiply 9 with 1

9 x 1 = 9

18n+9

iris [78.8K]3 years ago
5 0
18n+9 I hope that’s what your looking for!
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