(-4-1)/(2-1)=(-9+4)/(x-2) 怎么解x

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(-4-1)/(2-1)=(-9+4)/(x-2) 怎么解x
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(-4-1)/(2-1)=(-9+4)/(x-2) 怎么解x
(-4-1)/(2-1)=(-9+4)/(x-2) 怎么解x

(-4-1)/(2-1)=(-9+4)/(x-2) 怎么解x
-5/1=-5/(x-2)
-5=-5/(x-2)
1=1/(x-2)
x-2=1
x=3