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w in (-oo:+oo)
1/2-((5/6)*w) = 73/66 // - 73/66
1/2-((5/6)*w)-(73/66) = 0
(-5/6)*w+1/2-73/66 = 0
-5/6*w-20/33 = 0 // + 20/33
-5/6*w = 20/33 // : -5/6
w = 20/33/(-5/6)
w = -8/11
w = -8/11
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