X*0.17=Y X+Y=500
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X*0.17=Y X+Y=500
![X*0.17=Y X+Y=500](/uploads/image/z/18947848-40-8.jpg?t=X%2A0.17%3DY+X%2BY%3D500)
X+Y=500
x+0.17x=500
1.17x=500
x=500÷1.17
x≈427.35
y=500-x=500-427.35=72.65
再问: 500/1.17=X 500-X=Y
x+0.17x=500
1.17x=500
x=500÷1.17
x≈427.35
y=500-x=500-427.35=72.65
再问: 500/1.17=X 500-X=Y
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