3.6:x=2/3. x+1/2(x-1)=9 (解方程).
3.6:x=2/3. x+1/2(x-1)=9 (解方程).
解方程1/x(x+1)+1/(x+1)(x+2)+...+1/(x+8)(x+9)=2x+3/x(x+9)
解方程:1\x(x+1)+1\(x+1)(x+2)+.+1/(x+8)(x+9)=2x+3\x(x+9)
解方程,x(x+3)-x(1-2x)=1+3x平方
解方程 X除以(X-2) + (X-9)除以(X-7) = (X+1)除以(X-1) +(X-8)除以(X-6)
解方程:x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程(2x²-3x+1)(2x²+5x+1)=9x²
解方程6^x+4^x=9^x,9^(-x)-2*3^(1-x)=27
解分式方程1-x/2-3-x/x+(x-1)(x-3)/2x-1=1