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geniusboy [140]
2 years ago
15

Log(3y+2)-1=log(y-4) solve y​

Mathematics
1 answer:
sergij07 [2.7K]2 years ago
8 0

\log_{10} (3y+2) - 1 =  \log_{10}(y-4)\\\\\implies \log_{10} (3y+2) - \log_{10} 10 = \log_{10} (y-4)\\\\\implies \log_{10} \left( \dfrac{3y+2}{10} \right) = \log_{10} (y-4)\\\\\implies \dfrac{3y+2}{10} = y-4\\\\\implies 3y+2 = 10y-40\\\\\implies 10y-3y = 40+2\\\\\implies 7y = 42\\\\\implies y = \dfrac{42}7\\\\\implies y = 6

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