$x=\frac{-2\ln(5)y+\ln(84375)}{\ln(3)}+\frac{2\pi n_{1}i}{\ln(3)}$
$n_{1}\in \mathrm{Z}$

$y=\frac{-\ln(3)x+\ln(84375)}{2\ln(5)}+\frac{\pi n_{1}i}{\ln(5)}$
$n_{1}\in \mathrm{Z}$

$x=\frac{-2\ln(5)y+\ln(84375)}{\ln(3)}$

$y=\frac{-\ln(3)x+\ln(84375)}{2\ln(5)}$