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21 = 3 + 4n + 5n please help
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1 vote
21 = 3 + 4n + 5n
please help

User Pathogen
by
7.7k points

2 Answers

3 votes

Answer:

n=2

Explanation:

21 = 3 + 4n + 5n

21 = 3 + 9n

9n = 18

n = 2

;)

User Cristobal
by
8.8k points
2 votes

Answer: n = 2

Explanation:

User Ankit Giri
by
7.6k points
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