45=12/x

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Solution for 45=12/x equation: 


D( x )

x = 0

x = 0

x = 0

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

45 = 12/x // - 12/x

45-(12/x) = 0

45-12*x^-1 = 0

-12*x^-1 = -45 // : -12

x^-1 = 15/4

-1 < 0

1/(x^1) = 15/4 // * x^1

1 = 15/4*x^1 // : 15/4

4/15 = x^1

x = 4/15

x = 4/15

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