What will be the molar solubility S of a solid salt with general formula Mxp+Xyq- ?

A solid salt,of the general formula, Mxp+Xyq- with molar solubility ,S in equilibrium with its saturated solution may be represented by the equation,MxXy(s)⟶xMp+(aq)+yXq-'(aq) (where x×p+=y×q-                                       (where x×p+=y×q-And its solubility product constant is given byKsp=Mp+xXq-y=(xS)x(yS)yKSP= xx·yy·S(x+y)S(x+y)=KspXx,Yy or  S = Ksp/Xx·Yy1/x+y