Respuesta:
6/5
Explicación paso a paso:
[tex]log\left(x2\:+\:5\right)\:=\:log\left(7x\:-\:1\right)\\\\\log _{10}\left(x\cdot \:2+5\right)=\log _{10}\left(7x-1\right)\\\\x\cdot \:2+5=7x-1\\\\x=\frac{6}{5}\\\\[/tex]
x= 6/5
