6/13=7.8/x

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Solution for 6/13=7.8/x equation: 


D( x )

x = 0

x = 0

x = 0

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

6/13 = 7.8/x // - 7.8/x

6/13-(7.8/x) = 0

6/13-7.8*x^-1 = 0

-7.8*x^-1 = -6/13 // : -7.8

x^-1 = 0.0591716

-1 < 0

1/(x^1) = 0.0591716 // * x^1

1 = 0.0591716*x^1 // : 0.0591716

16.89999932 = x^1

x = 16.89999932

x = 16.89999932

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