-2023×3/7+2023×(-6/7)+2023×2/7=2023/7×(-3-6+2)=2023/7×(-7)=-2023
-2023×3/7+2023×(—6/7)+2023×2/7=2023×(-3/7)+2023×(-6/7)+2023×2/7=2023×(-3/7-6/7+2/7)=2023×(-1)=-2023