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solniwko [45]
3 years ago
6

What is the value of n? Enter your answer in the box.

Mathematics
1 answer:
MrRa [10]3 years ago
8 0
9/18 = (n+1)/(n+7)
9(n+7) = 18(n+1)
9n+63 = 18n+18
45 = 9n
n = 5
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