7/x=20/130

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Solution for 7/x=20/130 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x = 20/130 // - 20/130

7/x-(20/130) = 0

7/x-2/13 = 0

7*x^-1 = 2/13 // : 7

x^-1 = 2/91

-1 < 0

1/(x^1) = 2/91 // * x^1

1 = 2/91*x^1 // : 2/91

91/2 = x^1

x = 91/2

x = 91/2

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