5/3=7.5/x

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Solution for 5/3=7.5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

5/3 = 7.5/x // - 7.5/x

5/3-(7.5/x) = 0

5/3-7.5*x^-1 = 0

-7.5*x^-1 = -5/3 // : -7.5

x^-1 = 0.22222222

-1 < 0

1/(x^1) = 0.22222222 // * x^1

1 = 0.22222222*x^1 // : 0.22222222

4.50000005 = x^1

x = 4.50000005

x = 4.50000005

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