x/(x-3)-2/(x+3)=1【x等于几
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x/(x-3)-2/(x+3)=1【x等于几x/(x-3)-2/(x+3)=1【x等于几x/(x-3)-2/(x+3)=1【x等于几x(x+3)-2(x-3)=(x+3)(x-3)x^2+3x-2x+
x/(x-3)-2/(x+3)=1【x等于几
x/(x-3)-2/(x+3)=1【x等于几
x/(x-3)-2/(x+3)=1【x等于几
x(x+3)-2(x-3)=(x+3)(x-3)
x^2+3x-2x+6=x^2-9
x=-15
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