11分之x减9减3分之x加2等于x减1减2分之x减2
(x-9)/11-(x+2)/3=x-1-(x-2)/2
6(x-9)-22(x+2)=66(x-1)-33(x-2)
6x-54-22x-44=66x-66-33x+66
-16x-33x=98
-49x=98
∴x=-2