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2%1x+ 0.75=2.5x的全部过程.

2%=x×33.33%+(1-x)×(-25%) 2=33.33x+(x-1)×25 58.33x=27 x=27÷58.33 x≈0.463

财管第二章吧😄 (1-2%)(1+x)-1=15.38% 0.98+0.98x-1=0.1538 0.98x-1=-0.8262 0.98x=0.1738 x=0.1773

x+2%x = x+0.02x = (1+0.02)x

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