(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)求解,要过程,速度~
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![(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)求解,要过程,速度~](/uploads/image/z/5903039-47-9.jpg?t=%EF%BC%881%2Fx%2B2%EF%BC%89%2B%EF%BC%881%2Fx%2B8%EF%BC%89%3D+%EF%BC%881%2Fx%2B4%29%2B%EF%BC%881%2Fx%2B6%EF%BC%89%E6%B1%82%E8%A7%A3%2C%E8%A6%81%E8%BF%87%E7%A8%8B%2C%E9%80%9F%E5%BA%A6%7E)
(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)求解,要过程,速度~
(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)求解,要过程,速度~
(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)求解,要过程,速度~
(1/x+2)+(1/x+8)= (1/x+4)+(1/x+6)
1/(x+2)-1/(x+4)=1/(x+6)-1/(x+8)
[(x+4)-(x+2)]/(x+2)(x+4)=[(x+8)-(x+6)]/(x+6)(x+8)]
2/(x+2)(x+4)=2/(x+6)(x+8)
(x+6)(x+8)=(x+2)(x+4)
x² +14x+48=x²+6x+8
8x=-40
x=-5
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