(50-23)÷3+8×3-6×2+(6+15)÷3
(50-23)÷3+8×3-6×2+(6+15)÷3=28
(50-23)÷3+8×3-6×2+(6+15)÷3=27/3+8*3-6*2+21/3=9+24-12+7
(50-23):3+8×3-6×2+(6+15):3=28