3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
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![3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解](/uploads/image/z/13705513-25-3.jpg?t=3%2F%EF%BC%88X-4%29%2B4%2F%28y-1%29%3D3%E5%92%8C9%2F%28X-4%29-2%2F%28y-1%29%3D2%E6%96%B9%E7%A8%8B%E7%BB%84%E7%9A%84%E8%A7%A3)
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3和9/(X-4)-2/(y-1)=2方程组的解
3/(X-4)+4/(y-1)=3 (1)
9/(X-4)-2/(y-1)=2 (2)
(1)+(2)*2 得 21/(x-4)=7
x=7
y=3
x=19 y=17\7
设1/(X-4)=r, 1/(y-1)=t
那么3r+4t=3 9r-2t=2
r=1/3 t=1/2
带入原假设
x=7 y=3
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x=7,y=3