x - 3/2011+x - 2/2012=x - 2012/2+x-2011/3
(x-3/2011 -1 )+(x-2/2012 - 1)=(x-2012/2 - 1)-( x-2011/3 - 1)
x-2014/2011 +x-2014/2012 = x-2014/2 - x-2014/3
x-2014/2011 + x-2014/2012 - x-2014/2 + x-2014/3=0
(x-2014)(1/2011 + 1/2012 - 1/2 + 1/3 ) = 0
Ta có : 1/2 > 1/3 >1/2011 > 1/2012=>1/2011 + 1/2012 - 1/2 +1/3 khác 0
=> x- 2014=o
x=0+2014
x= 2014
vậy x=2014
