3/5=45/x

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Solution for 3/5=45/x equation: 


D( x )

x = 0

x = 0

x = 0

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

3/5 = 45/x // - 45/x

3/5-(45/x) = 0

3/5-45*x^-1 = 0

-45*x^-1 = -3/5 // : -45

x^-1 = 1/75

-1 < 0

1/(x^1) = 1/75 // * x^1

1 = 1/75*x^1 // : 1/75

75 = x^1

x = 75

x = 75

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