两边分别通分:{(x-8)(x-4)-(x-9)(x-3)}/(x-3)(x-4)={(x+7)(x+3)-(x+2)(x+8)}/(x+8)(x+3) 将分子化简: 5/(x-3)(x-4)=5/(x+8)(x+3) 得:(x-3)(x4)=(x+8)(x+3) 展开:x^2-7x+12=x^2+11x+24 解得:x=-2/3 经检验,X=-2/3是方程的根.