-7/5=91/x

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Solution for -7/5=91/x equation: 


D( x )

x = 0

x = 0

x = 0

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

-7/5 = 91/x // - 91/x

-(91/x)-7/5 = 0

-91*x^-1-7/5 = 0

-91*x^-1 = 7/5 // : -91

x^-1 = -1/65

-1 < 0

1/(x^1) = -1/65 // * x^1

1 = -1/65*x^1 // : -1/65

-65 = x^1

x = -65

x = -65

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