解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=2x+3/x(x+9)求大神帮助

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解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=2x+3/x(x+9)求大神帮助解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x

解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=2x+3/x(x+9)求大神帮助
解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=2x+3/x(x+9)求大神帮助

解方程:1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=2x+3/x(x+9)求大神帮助
1/x(x+1)+1/(x+1)(x+2)······1/(x+8)(x+9)=(2x+3)/x(x+9) (1/x-1/x+1)+(1/x+1-1/x+2)+.+1/x+8-1/x+9=(2x+3)/x(x+9) 1/x-1/x+9=(2x+3)/x(x+9) 9/x(x+9)=(2x+3)/x(x+9) 2x+3=9 x=3