x-(40%x-3)=75
问题描述:
x-(40%x-3)=75
答
x-(40%x-3)=75
x-40%x+3=75
60%x=72
x=120
x-(40%x-3)=75
x-(40%x-3)=75
x-40%x+3=75
60%x=72
x=120