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m in (-oo:+oo)
(4*m)/3-((3*m-9)/9) = 2*m-1 // - 2*m-1
(4*m)/3-((3*m-9)/9)-(2*m)+1 = 0
(4*m)/3-((3*m-9)/9)-2*m+1 = 0
(-1*(3*m-9))/9+(4*m)/3-2*m+1 = 0
(-1*3*(3*m-9))/(3*9)+(4*9*m)/(3*9)+(-2*3*9*m)/(3*9)+(1*3*9)/(3*9) = 0
4*9*m-1*3*(3*m-9)-2*3*9*m+1*3*9 = 0
27*m-54*m+27+27 = 0
27-27*m+27 = 0
54-27*m = 0
(54-27*m)/(3*9) = 0
(54-27*m)/(3*9) = 0 // * 3*9
54-27*m = 0
54-27*m = 0 // - 54
-27*m = -54 // : -27
m = -54/(-27)
m = 2
m = 2
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