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m in (-oo:+oo)
m-(m/3)-(2/5) = (m+1)/2 // - (m+1)/2
m-((m+1)/2)-(m/3)-(2/5) = 0
m-((m+1)/2)-(m/3)-2/5 = 0
(-1*(m+1))/2+m-m/3-2/5 = 0
(-1*3*5*(m+1))/(2*3*5)+(2*3*5*m)/(2*3*5)+(2*5*(-m))/(2*3*5)+(-2*2*3)/(2*3*5) = 0
2*3*5*m-1*3*5*(m+1)+2*5*(-m)-2*2*3 = 0
15*m-10*m-15-12 = 0
5*m-15-12 = 0
5*m-27 = 0
(5*m-27)/(2*3*5) = 0
(5*m-27)/(2*3*5) = 0 // * 2*3*5
5*m-27 = 0
5*m-27 = 0 // + 27
5*m = 27 // : 5
m = 27/5
m = 27/5
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