Hyrdostatic pressure problem

[hilikus]

i cant figure out how to do a hydrostatic pressure problem with two liquids in a container...im at my wits end...i can find the values im looking for by just plugging in numbers but im also trying to figure out how to do the equation itself and then find the values..

a little advice?

2p = p + pgd(m) + pgd(w)


thanks

edit: nevermind, figured it out on my own...thanks though