9/30=4.5/x

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Solution for 9/30=4.5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

9/30 = 4.5/x // - 4.5/x

9/30-(4.5/x) = 0

9/30-4.5*x^-1 = 0

-4.5*x^-1 = -3/10 // : -4.5

x^-1 = 0.06666667

-1 < 0

1/(x^1) = 0.06666667 // * x^1

1 = 0.06666667*x^1 // : 0.06666667

14.99999925 = x^1

x = 14.99999925

x = 14.99999925

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