5/(x+16.84)=1/5
对角想乘
x+16.84=25
x=8.16
4.2x/16-14=0.175
4.2x/16=14.175
4.2x=226.8
x=54
5除=5分之1解方程 4.2X除1.6—14=0.175解方程
5除=5分之1解方程 4.2X除1.6—14=0.175解方程
数学人气：252 ℃时间：2020-01-29 21:48:40
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