X-X/1.05*0.05-(X/1.05*0.05)*0.17=100 求X值!

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X-X/1.05*0.05-(X/1.05*0.05)*0.17=100 求X值!
X-X/1.05*0.05-(X/1.05*0.05)*0.17=100 求X值!

X-X/1.05*0.05-(X/1.05*0.05)*0.17=100 求X值!
x-x/1.05*0.05-0.17*(x/1.05*0.05)=100
x-(1/21)x-0.17*1/21x=100
[1-(1+17/100)*1/21]=100
1983/2100x=100
x=210000/1983

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