已知1/x+2y=4/y-x=3/2x+1,求23/3*(y-x)的值
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已知1/x+2y=4/y-x=3/2x+1,求23/3*(y-x)的值
已知1/x+2y=4/y-x=3/2x+1,求23/3*(y-x)的值
已知1/x+2y=4/y-x=3/2x+1,求23/3*(y-x)的值
1/(X+2Y)=4/(Y-X)=3/(2X+1)
(X+2Y)=(Y-X)/4=(2X+1)/3
12X+24Y=3Y-3X=8X+4
12X+24Y=3Y-3X,15X=-21Y,X=-7Y/5
3Y-3X=8X+4
3Y=11X+4=-77Y/5+4
92Y/5=4
Y=5/23
X=-7/23
Y-X=12/23
23(Y-X)/3=4