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w in (-oo:+oo)
10 = (4*w-8)/3+(w+4)/6 // - (4*w-8)/3+(w+4)/6
10-((4*w-8)/3)-((w+4)/6) = 0
(-1*(4*w-8))/3+(-1*(w+4))/6+10 = 0
(-1*6*(4*w-8))/(3*6)+(-1*3*(w+4))/(3*6)+(3*6*10)/(3*6) = 0
3*6*10-1*6*(4*w-8)-1*3*(w+4) = 0
36-27*w+180 = 0
216-27*w = 0
(216-27*w)/(3*6) = 0
(216-27*w)/(3*6) = 0 // * 3*6
216-27*w = 0
216-27*w = 0 // - 216
-27*w = -216 // : -27
w = -216/(-27)
w = 8
w = 8
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