2*log(y+5)=log 20-log 5

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

7 0

Answer:

$y = - 3$

Step-by-step explanation:

$\frac{2 log_{10}(y + 5) }{2} = \frac{ log_{10}(20) }{2} - \frac{ log_{10}(5) }{2}$

$log_{10}(y + 5) = \frac{ log_{10}(20) }{2} - \frac{ log_{10}(5) }{2}$

$y + 5 = 2 \\ y = - 3$

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