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m in (-oo:+oo)
6*m-(5/9) = 218/45-((3/4)*m) // - 218/45-((3/4)*m)
6*m+(3/4)*m-(5/9)-(218/45) = 0
6*m+(3/4)*m-5/9-218/45 = 0
27/4*m-27/5 = 0 // + 27/5
27/4*m = 27/5 // : 27/4
m = 27/5/27/4
m = 4/5
m = 4/5
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