In ΔEFG, start overline, E, G, end overline EG is extended through point G to point H, m, angle, E, F, G, equals, left parenthesis, 3, x, plus, 15, right parenthesis, degreesm∠EFG=(3x 15) ∘ , m, angle, G, E, F, equals, left parenthesis, 2, x, plus, 6, right parenthesis, degreesm∠GEF=(2x 6) ∘ , and m, angle, F, G, H, equals, left parenthesis, 9, x, minus, 15, right parenthesis, degreesm∠FGH=(9x−15) ∘ . Find m, angle, G, E, F, .m∠GEF.