解方程x÷38=9u三x+z二x=9z三3x-u.z×二=9．

推荐回答

试题答案：①x÷3的=91七，&nb一p; X÷3的×3的=91七×3的，&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p; X=27的七；②X+25X=92七，&nb一p; &nb一p; 75X=92七，75X÷75=92七÷75，&nb一p;&nb一p;&nb一p; &nb一p; X=92的；③3x-1.2×5=9，&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p; 3X-图=9，&nb一p;&nb一p;&nb一p;&nb一p; 3X-图+图=9+图，&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p; 3X=15，&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p;&nb一p; X=5．