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x/(1-x)=10%x=0.1(1-x)x=0.1-0.1x1.1x=0.1x=1/11X等十一分之一
解:x=0.1(1-x),10x=1-x,11x=1,x=1/11
x/(1-x)=10%100X=10(1-X)10X=1-X11X=1X=1/11