解方程x/1*2+x/2*3+…+x/99*100=99
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
x/1*2+x/2*3+x/3*4+...+x/99*100=1 解方程
方程(1X+2X+3X…+98X+99X+100X=50500X)请问X等于多少?
解方程x/1*2+x/2*3+…+x/99*100=99
解方程x/1*2+x/2*3+…x/99*100=99
解方程x/1*2+x/2*3+…+x/99*100=99.
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程:1/(x+1)(x+2)+1/(x+2)(x+3)...+1/(x+99)(x+100)+1/(x+100)=1
解方程1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+99)(x+100)+1/x+100=199
解方程1/(x+)(x+2)+1/(x+2)(x+3)+...1/(x+99)(x+100)+1/x+100=2009/
解方程:2x(x-1)-x(3x+2)=-x(x+2)-12
解方程 3x/x×x-1+x×x-1/3x=5/2