(x+1)/0.2-(x+3)/0.01=50(求过程)
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(x+1)/0.2-(x+3)/0.01=50(求过程)(x+1)/0.2-(x+3)/0.01=50(求过程)(x+1)/0.2-(x+3)/0.01=50(求过程)(x+1)/0.2-(x+3)/
(x+1)/0.2-(x+3)/0.01=50(求过程)
(x+1)/0.2-(x+3)/0.01=50(求过程)
(x+1)/0.2-(x+3)/0.01=50(求过程)
(x+1)/0.2-(x+3)/0.01=50
5(x+1)-100(x+3)=50
5x+5-100x-300=50
5x-100x=50-5+300
-95x=345
x=-69/19
[x(x+1)+x平方(x-1)]+(-3x)
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