Phillippe
Phillippe
04-06-2018
Mathematics
contestada
Can someone solve this for me? Thanks.
Respuesta :
ntnlbar
ntnlbar
04-06-2018
use this formula
[tex] log_{5}(10x + 5) - log_{5}(x - 7) = \\ log_{5}( \frac{10x + 5}{x - 7} ) [/tex]
after thet you have
[tex] log_{5}( \frac{10x + 5}{x - 7} ) = 2[/tex]
open this up
[tex] \frac{10x + 5}{x - 7} = {5}^{2} [/tex]
and from now you sould be fine!
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