emmanuel8644 emmanuel8644
  • 28-04-2020
  • Mathematics
contestada

Log (3x+1) - Log (2x+5)= 1​

Respuesta :

Hrishii
Hrishii Hrishii
  • 28-04-2020

Answer:

[tex] \huge \red { \boxed{x = - \frac{49}{17}}}[/tex]

Step-by-step explanation:

[tex]log(3x + 1) - log(2x + 5) = 1 \\ \\ log \: \frac{3x + 1}{2x + 5} = log \: 10..( \because \: log \: 10 = 1) \\ \\ \frac{3x + 1}{2x + 5} = 10 \\ \\ 3x + 1 = 20x + 50 \\ 3x - 20x = 50 - 1 \\ \\ - 17x = 49 \\ \\ x = \frac{49}{ - 17} \\ \\ \huge \purple{ \boxed{x = - \frac{49}{17}}} \\ [/tex]

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