-4/5=15/x

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Solution for -4/5=15/x equation: 


D( x )

x = 0

x = 0

x = 0

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

-4/5 = 15/x // - 15/x

-(15/x)-4/5 = 0

-15*x^-1-4/5 = 0

-15*x^-1 = 4/5 // : -15

x^-1 = -4/75

-1 < 0

1/(x^1) = -4/75 // * x^1

1 = -4/75*x^1 // : -4/75

-75/4 = x^1

x = -75/4

x = -75/4

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