3/5=4.5/x

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Solution for 3/5=4.5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

3/5 = 4.5/x // - 4.5/x

3/5-(4.5/x) = 0

3/5-4.5*x^-1 = 0

-4.5*x^-1 = -3/5 // : -4.5

x^-1 = 0.13333333

-1 < 0

1/(x^1) = 0.13333333 // * x^1

1 = 0.13333333*x^1 // : 0.13333333

7.50000019 = x^1

x = 7.50000019

x = 7.50000019

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