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1.(5-3X)/2=(3-5X)/3 2.y-(y-10)/2=2-(y+2)/5 3.(x+2)/4-(2x-3)/6=1
4.(x-2)/5-(x+3)/10-(2x-5)/3+3=0
解方程
人气:280 ℃ 时间:2020-09-26 03:29:44
解答
1.(5-3X)/2=(3-5X)/35/2-3/2x=1-5/3x5/2-1=(3/2-5/3)x(9/6-10/6)x=3/2-1/6x=3/2x=-3/2*6x=-92.y-(y-10)/2=2-(y+2)/5 y-1/2y+5=2-1/5y-2/51/2y+1/5y=2-5-2/55/10y+2/10y=-3-2/5.7/10y=-17/5y=-17*10/(7*5)y=-34/7...
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