zapora12
zapora12
13-09-2015
Mathematics
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what is the fraction for 4(5n-7)=10n+2
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Panoyin
Panoyin
14-09-2015
4(5n - 7) = 10n + 2
4(5n) - 4(7) = 10n + 2
20n - 28 = 10n + 2
- 10n - 10n
10n - 28 = 2
+ 28 + 28
10n = 30
10 10
n = 3
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