7/11=665/x

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Solution for 7/11=665/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/11 = 665/x // - 665/x

7/11-(665/x) = 0

7/11-665*x^-1 = 0

-665*x^-1 = -7/11 // : -665

x^-1 = 1/1045

-1 < 0

1/(x^1) = 1/1045 // * x^1

1 = 1/1045*x^1 // : 1/1045

1045 = x^1

x = 1045

x = 1045

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