解二元一次方程组{x-1/2+y+2/3=3/2 x+1/3-y-1/2=1写错了。是 {(x-1)/2+(y+2)/3=3/2 ( x+1)/3-(y-1)/2=1

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解二元一次方程组{x-1/2+y+2/3=3/2x+1/3-y-1/2=1写错了。是{(x-1)/2+(y+2)/3=3/2(x+1)/3-(y-1)/2=1解二元一次方程组{x-1/2+y+2/3=

解二元一次方程组{x-1/2+y+2/3=3/2 x+1/3-y-1/2=1写错了。是 {(x-1)/2+(y+2)/3=3/2 ( x+1)/3-(y-1)/2=1
解二元一次方程组{x-1/2+y+2/3=3/2 x+1/3-y-1/2=1
写错了。是 {(x-1)/2+(y+2)/3=3/2 ( x+1)/3-(y-1)/2=1

解二元一次方程组{x-1/2+y+2/3=3/2 x+1/3-y-1/2=1写错了。是 {(x-1)/2+(y+2)/3=3/2 ( x+1)/3-(y-1)/2=1
在两个方程式两边同时乘以6,得
3(x-1)+2(y+2)=9,2(x+1)-3(y-1)=6,
化解得:3x+2y=8,2x-3y=1,
3x+2y=8,可以化为:6x+4y=16,
2x-3y=1,可化为6x-9y=3,
两个方程式相减,得13y=13,y=1将y=1带入3x+2y=8得 x=2

x=2,y=1

X=2;Y=1;