-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)

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-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)

-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)
-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)

-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)
-3^2=(-1)^2011/(-1/2)^2-3X*(0.5-2/3)
-9=-1/(1/4)-3(-1/6)x
-9=-4+2x
x=-5/2