解方程2x^2-5x-7x-2x^2+12,其中x=1/6

解方程2x^2-5x-7x-2x^2+12,其中x=1/6 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7) 解方程：x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6 解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 解方程(x-6)(x^2+x+1)-x(x+1)(x-1)=x(2-5x) x-1\x-2+x-6\x-7=x-2\x-3+x-5\x-6 分式方程 解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7) 解方程：x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6) 解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8) 解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x)