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w in (-oo:+oo)
3-(5*w) = 58 // - 58
3-(5*w)-58 = 0
3-5*w-58 = 0
-5*w-55 = 0 // + 55
-5*w = 55 // : -5
w = 55/(-5)
w = -11
w = -11
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