【(60-x)*40%+20%x】*40=【(40-x)*20%+4%】*60
问题描述:
【(60-x)*40%+20%x】*40=【(40-x)*20%+4%】*60
答
【(60-x)*40%+20%x】*40=【(40-x)*20%+4%】*60
(24-0.4x+0.2x)*2=(8-0.2x+0.04)*3
48-0.4x=24.12-0.6x
-0.4x+0.6x=24.12-48
0.2x=-23.88
x=-23.88/0.2
x=-119.4
答
【(60-x)*40%+20%x】*40=【(40-x)*20%+4%】*60
(24-0.4x+0.2x)X40=(8-0.2x+0.04)X60
960-8x=482.4-12x
4x=-477.6
x=-119.4