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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

X/(1-2%)+(7650-X)/(1+10%)=7650/(1+2%) X/0.98+(7650-X)/1.1=7650/1.02 (1.1x+0.98*7650-0.98x)/0.98*1.1=7650/1.02 0.12x=0.98*7650*1.1/1.02-0.98*7650 x=0.98*7650*1.1/(1.02*0.12)-0.98*7650/1.02 x=0.98*7650/(0.12*1.02)(1.1-1.02) x=0.9...

Xx0.3333+(1-x)X-0.25=0.02 Xx0.3333+X-x^2=0.27 x^2一0.3333X-x十0.27=o 3X^2一4X+0.81=o X=(4±√(16+3*4*0.81))/6 =(4±√25.7)/6 X1=(4+√25.7)/6 X2=(4一√25.7)/6

x=y-[y/(1+17%)*17%*(1+7%+3%+2%)] =y-(y/1.17*0.17*1.12) =y-(476/2925)y =(2449/2925)y, 2925x-2449y=0

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