解方程:(2x+3)(x-4)-(x+2)(x-3)=xx+6
解方程:(2x+3)(x-4)-(x+2)(x-3)=xx+6
解方程1/(xx+x)+1/(xx+3x+2)+1/(xx+5x+6)+1/(xx+7x+12)+1/(xx+9x+20
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
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+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程:2-xx-3=1-13-x.
解方程:x(6-x)-2x(x+1)-(x^3-3x^4)/x²=4
解分式方程:x-3/x-1-x-4/x-2=x-5/x-3-x-6
解方程:(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0
7x(x-6)+3x=4x(2x+5)怎么解这个方程