`(x-2)/1007 + (x-1)/1008 < (2x-1)/2017 + (2x-3)/2015`

`<=> (x-2)/1007 -1 + (x-1)/1008 -1< (2x-1)/2017 -1+ (2x-3)/2015-1`

`<=> (x-1009)/1007  + (x-1009)/1008 < (2(x-1009))/2017 + (2(x-1009))/2015`

`<=> (x-1009)/1007  + (x-1009)/1008 - (2(x-1009))/2017 - (2(x-1009))/2015 <0`

`<=>(x-1009)(1/1007 + 1/1008 - 2/2017 - 2/2015)<0`

Vì `1/1007 + 1/1008 - 2/2017 - 2/2015 > 0 `

`=> x-1009 <0`

`=>x< 1009`

Vạy `x< 1009`