if you could provide an explanation for the steps that would be great!

2) Consider neutron continuity equation an,Ot+V. 1 (= S(r) where N, is the neutron density, j() = jlxxz +yz +zy?z) is the neutron particle flux, is the normalization constant, and S(r) is the sink/source term). Find S(r) for the stationary case. (20 points)