20/6=90/m

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Solution for 20/6=90/m equation: 


D( m )

m = 0

m = 0

m = 0

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

20/6 = 90/m // - 90/m

20/6-(90/m) = 0

20/6-90*m^-1 = 0

-90*m^-1 = -10/3 // : -90

m^-1 = 1/27

-1 < 0

1/(m^1) = 1/27 // * m^1

1 = 1/27*m^1 // : 1/27

27 = m^1

m = 27

m = 27

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