2-(0.1X+0.2)*0.5=X-(0.01X-0.01)*0.02_数学解答

2-(0.1X+0.2)*0.5=X-(0.01X-0.01)*0.02

人气：313 ℃　时间：2020-01-24 17:34:58

解答

200-50(0.1x+0.2)=100x-2(0.01x-0.01)
200-5x-10=100x-0.02x+0.02
189.8=105x-0.02x
x=949/524