（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5) 解方程

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（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)解方程（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3

（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5) 解方程
（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5) 解方程

（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5) 解方程
（3x+5)/(x+2) = [(3x+6) -1] /(x+2) =3 - 1/(x+2) 后面都类似化简
3- 1/(x+2) + 3 - 1/(x+9) = 3 -1/(x+6) + 3 -1/(x+5)
1/(x+2) + 1/(x+9) = 1/(x+6) + 1/(x+5)
(2x+11)/ (x+2)(x+9) =(2x+11)/ (x+6)(x+5)
2x+11 = 0
x = -5.5

（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)
3-1/(x+2)+3-1/(x+9)=3-1/(x+6)+3-1/(x+5)
1/(x+2)-1/(x+6)=1/(x+5)-1/(x+9)
((x+6)-(x+2))(x+5)(x+9)=((x+9)-(x+5))(x+2)(x+6)
(x+5)(x+9)=(x+2）(x+6)
x^2+14x+45=x^2+8x+12
6x=-33
x=-33/6

(3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)
(3x+6-1)/(x+2)+(3x+27-1)/(x+9)=(3x+18-1)/(x+6)+(3x+15-1)/(x+5)
3-1/(x+2) + 3-1/(x+9) = 3-1/(x+6) + 3-1/(x+5)
1/(x+2) + 1/(x+9) = 1/(x+6) + 1/(x+5)
(2x+11)/ (x+2)(x+9) =(2x+11) /(x+6)(x+5)
2x +11 = 0
x = - 11/2

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