x-(25%x+6)=60%x
问题描述:
x-(25%x+6)=60%x
答
x-(25%x+6)=60%x
化为 x-(0.25x+6)=0.6x
x-0.25x-6=0.6x
0.75x-6=0.6x
0.75x-0.6x=6
0.15x=6
x=6/0.15=40