解方程：4+2/5x=6+1/5x

解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x) 解方程 (x+2)/(x+1) - (x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7) 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程：(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0 解分式方程：x-3/x-1-x-4/x-2=x-5/x-3-x-6 解方程 x(2x-4)+3x(x-1)=5x(x-3)+8 解方程,一元三次方程...4x^3-6x^2+5x-1=0 方程（x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x^2+8x+9)+64=01.不解方程是判断方程有几根2.解这个方程 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程 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 解分式方程：(x+1)/(x+2)+(x+6)/(x+7)=(x+2)/(x+3)+(x+5)/(x+6) 解分式方程: (x-1)/(x-2)+(x-6)/(x-7)=(x-2)/(x-3)+(x-5)/(x-6) 解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7) 解方程(x-6)(x^2+x+1)-x(x+1)(x-1)=x(2-5x) 解方程；x/x-4=5x/x-2 解方程：(x+3)/(x+2)-(x+4)/(x+3)=(x+5)/(x+4)-(x+2)/(x+1)