解方程 6x-2(x+3)=3(x+0.4) 2.35/(0.7x+0.12)=5

解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程：(x-2)(x^2-6x-9)=x(x-5)(x-3) 解方程 6x-2(x+3)=3(x+0.4) 2.35/(0.7x+0.12)=5 解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7) 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+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) 解方程（x-2）X（x的平方-6x-9）=x(x-5)X(x-3) 解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 解方程:2- x+5/6=x- x-1/3,0.1-0.2x/0.03-1=0.7-x/0.4 解分式方程x/X-2-1-X^2/X^2-5X+6=2X/X-3