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w in (-oo:+oo)
(w+3)/4 = (w-2)/2 // - (w-2)/2
(w+3)/4-((w-2)/2) = 0
(w+3)/4+(-1*(w-2))/2 = 0
(2*(w+3))/(2*4)+(-1*4*(w-2))/(2*4) = 0
2*(w+3)-1*4*(w-2) = 0
14-2*w = 0
(14-2*w)/(2*4) = 0
(14-2*w)/(2*4) = 0 // * 2*4
14-2*w = 0
14-2*w = 0 // - 14
-2*w = -14 // : -2
w = -14/(-2)
w = 7
w = 7
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