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m in (-oo:+oo)
(2/9)*m = (3/5)*(10*m-2) // - (3/5)*(10*m-2)
(2/9)*m-((3/5)*(10*m-2)) = 0
(-3/5)*(10*m-2)+(2/9)*m = 0
(2*m)/9-3/5*(10*m-2) = 0
(-3/5*9*(10*m-2))/9+(2*m)/9 = 0
2*m-3/5*9*(10*m-2) = 0
54/5-52*m = 0
(54/5-52*m)/9 = 0
(54/5-52*m)/9 = 0 // * 9
54/5-52*m = 0
54/5-52*m = 0 // - 54/5
-52*m = -54/5 // : -52
m = -54/5/(-52)
m = 27/130
m = 27/130
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