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11 votes
18cn - 18a + 12d - 20d + 19d - 20cn - 5a + 20cn - 17a

User RWDJ
by
7.3k points

1 Answer

11 votes

Answer:

18cn-40a+11d

Explanation:

The solution is in the image

18cn - 18a + 12d - 20d + 19d - 20cn - 5a + 20cn - 17a-example-1
User Ckarabulut
by
6.8k points