Case 70	Case 155	Case 160
$\frac{dn}{dt}=k_{an}-0.01E_{s}nm$	$\frac{dn}{dt}=100k_{an}-2n$	$\frac{dn}{dt}=10k_{an}{s}^{-1}-0.2n{s}^{-1}$
$\frac{ds}{dt}=0.01E_{s}nm-0.1s$	$\frac{ds}{dt}=0.01n-10s$	$\frac{ds}{dt}=0.01E_{s}nm{x}^{-1}-1$
$\frac{dm}{dt}=4s-4m$	$\frac{dm}{dt}=4s-4m$	$\frac{dm}{dt}=4s-4m$
$\frac{dx}{dt}=10n-20x$	$\frac{dx}{dt}=10n-20x$	$\frac{dx}{dt}=10n-20x$
$\frac{dr}{dt}=4x-4r$	$\frac{dr}{dt}=4x-4r$	$\frac{dr}{dt}=4x-4r$