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w in (-oo:+oo)
-((2/6)*w+11) = (11/6)*w-3 // - (11/6)*w-3
3-((2/6)*w)-((11/6)*w)-11 = 0
(-1/3)*w+(-11/6)*w-11+3 = 0
-13/6*w-8 = 0 // + 8
-13/6*w = 8 // : -13/6
w = 8/(-13/6)
w = -48/13
w = -48/13
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