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m in (-oo:+oo)
(1/2)*(m+2)+(1/3)*m = 1/3-((1/6)*m) // - 1/3-((1/6)*m)
(1/2)*(m+2)+(1/3)*m+(1/6)*m-(1/3) = 0
(1/2)*(m+2)+(1/3)*m+(1/6)*m-1/3 = 0
1/2*(m+2)+m/3+m/6-1/3 = 0
(1/2*3*6*(m+2))/(3*6)+(6*m)/(3*6)+(3*m)/(3*6)+(-1*6)/(3*6) = 0
1/2*3*6*(m+2)+6*m+3*m-1*6 = 0
15*m+3*m-6+18 = 0
18*m-6+18 = 0
18*m+12 = 0
(18*m+12)/(3*6) = 0
(18*m+12)/(3*6) = 0 // * 3*6
18*m+12 = 0
18*m+12 = 0 // - 12
18*m = -12 // : 18
m = -12/18
m = -2/3
m = -2/3
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