30%x +30 - (x-30%x-30)/4 =100怎么解?能细就细
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30%x+30-(x-30%x-30)/4=100怎么解?能细就细30%x+30-(x-30%x-30)/4=100怎么解?能细就细30%x+30-(x-30%x-30)/4=100怎么解?能细就细3
30%x +30 - (x-30%x-30)/4 =100怎么解?能细就细
30%x +30 - (x-30%x-30)/4 =100怎么解?
能细就细
30%x +30 - (x-30%x-30)/4 =100怎么解?能细就细
30%x +30 - (x-30%x-30)/4 =100
0.3x+30-(0.7x-30)/4=100
0.3x-0.175x+37.5=100
0.125x=62.5
x=500
30%x +30 - (x-30%x-30)/4 =100
1.2x+120-0.7x+30=400
0.5x=250
x=500
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