m+12/m=7

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Solution for m+12/m=7 equation: 


D( m )

m = 0

m = 0

m = 0

m in (-oo:0) U (0:+oo)

m+12/m = 7 // - 7

m+12/m-7 = 0

1*m^1+12*m^-1-7*m^0 = 0

(1*m^2-7*m^1+12*m^0)/(m^1) = 0 // * m^2

m^1*(1*m^2-7*m^1+12*m^0) = 0

m^1

m^2-7*m+12 = 0

m^2-7*m+12 = 0

DELTA = (-7)^2-(1*4*12)

DELTA = 1

DELTA > 0

m = (1^(1/2)+7)/(1*2) or m = (7-1^(1/2))/(1*2)

m = 4 or m = 3

m in { 3, 4} 

m in { 3, 4 }

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