Problem 17 | Separation of Variables

$\dfrac{dV}{dP} = -\dfrac{V}{P}$

$\dfrac{dV}{V} = -\dfrac{dP}{P}$

$\ln V = -\ln P + \ln c$

$\ln V + \ln P = \ln c$

$\ln VP = \ln c$

$VP = c$           answer