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m in (-oo:+oo)
5*m-((2/3)*m)+3/10 = 37/15 // - 37/15
5*m-((2/3)*m)+3/10-(37/15) = 0
5*m+(-2/3)*m+3/10-37/15 = 0
13/3*m-13/6 = 0 // + 13/6
13/3*m = 13/6 // : 13/3
m = 13/6/13/3
m = 1/2
m = 1/2
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