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w in (-oo:+oo)
3*w+1 = 6*w+37 // - 6*w+37
3*w-(6*w)-37+1 = 0
3*w-6*w-37+1 = 0
-3*w-36 = 0 // + 36
-3*w = 36 // : -3
w = 36/(-3)
w = -12
w = -12
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