x+y/2=2x-y+4/3=x+2y+3/4 亲 请会的人速度
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x+y/2=2x-y+4/3=x+2y+3/4 亲 请会的人速度
![x+y/2=2x-y+4/3=x+2y+3/4 亲 请会的人速度](/uploads/image/z/17919571-67-1.jpg?t=x%2By%2F2%3D2x-y%2B4%2F3%3Dx%2B2y%2B3%2F4+%E4%BA%B2+%E8%AF%B7%E4%BC%9A%E7%9A%84%E4%BA%BA%E9%80%9F%E5%BA%A6)
2(2x-y+4)=3(x+y)化简得x-5y=-8
2(x+2y+3)=4(x+y)化简得x=3
将x=3代入x-5y=-8得
3-5y=-8
5y=11
y=11/5
所以
x=3
y=11/5
2(x+2y+3)=4(x+y)化简得x=3
将x=3代入x-5y=-8得
3-5y=-8
5y=11
y=11/5
所以
x=3
y=11/5
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
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