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w in (-oo:+oo)
(3/5)*w+5/9 = -299/45 // + -299/45
(3/5)*w+5/9-(-299/45) = 0
(3/5)*w+5/9+299/45 = 0
3/5*w+36/5 = 0 // - 36/5
3/5*w = -36/5 // : 3/5
w = -36/5/3/5
w = -12
w = -12
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