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Tresset [83]
3 years ago
6

21 = 3 + 4n + 5n can someone solve this but with showing work please??

Mathematics
1 answer:
saveliy_v [14]3 years ago
5 0

21 = 3 + 4n + 5n

=> 21 - 3 = 4n + 5n

=> 18 = 4n + 5n

=> 18 = 9n

=> 18/9 = n

=> 2 = n

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