20/x=3/7

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Solution for 20/x=3/7 equation: 


D( x )

x = 0

x = 0

x = 0

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

20/x = 3/7 // - 3/7

20/x-(3/7) = 0

20/x-3/7 = 0

20*x^-1 = 3/7 // : 20

x^-1 = 3/140

-1 < 0

1/(x^1) = 3/140 // * x^1

1 = 3/140*x^1 // : 3/140

140/3 = x^1

x = 140/3

x = 140/3

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