方程1/x-7+1/x-8=-1/x-10-1/x-11

方程1/x-7+1/x-8=-1/x-10-1/x-11
方程1/x-7+1/x-8=-1/x-10-1/x-11

方程1/x-7+1/x-8=-1/x-10-1/x-11
1/x-7+1/x-8=-1/x-10-1/x-11
1/x+1/x+1/x+1/x=-10-11+7+8
4 /x=-6
x=-2/3
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1/X+1/X+1/X+1/X=-10-11+8+7
4/X=6
X=2/3