In september 1998 population of country of west goma in millions was modeled by f(x)=17.7e0.0018x. at same time population of east coma in millions was modeled by g(x)=13.9e0.0186x. in both formulas x is year, where x=0 corresponds to september 1998. Suppose these trends continue, evaluate year when population of west goma will equal population of east goma.