238*30%+()*70%=370
()*70%=370-71.4
()=298.6/0.7
()=2986/7
100*(238*30%+70%x)=370x100(这一步对)
238x30+70x=37000(这一步你错了)
70x=29860
x=2986/7
238*30%+()*70%=370
()*70%=370-71.4
()=298.6/0.7
()=2986/7
100*(238*30%+70%x)=370x100(这一步对)
238x30+70x=37000(这一步你错了)
70x=29860
x=2986/7