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m in (-oo:+oo)
3/8 = (4*m-4)/12 // - (4*m-4)/12
3/8-((4*m-4)/12) = 0
(-1*(4*m-4))/12+3/8 = 0
(-1*8*(4*m-4))/(8*12)+(3*12)/(8*12) = 0
3*12-1*8*(4*m-4) = 0
68-32*m = 0
(68-32*m)/(8*12) = 0
(68-32*m)/(8*12) = 0 // * 8*12
68-32*m = 0
68-32*m = 0 // - 68
-32*m = -68 // : -32
m = -68/(-32)
m = 17/8
m = 17/8
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