8/x-2/5=20

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Solution for 8/x-2/5=20 equation: 


D( x )

x = 0

x = 0

x = 0

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

8/x-(2/5) = 20 // - 20

8/x-(2/5)-20 = 0

8/x-2/5-20 = 0

8*x^-1 = 102/5 // : 8

x^-1 = 51/20

-1 < 0

1/(x^1) = 51/20 // * x^1

1 = 51/20*x^1 // : 51/20

20/51 = x^1

x = 20/51

x = 20/51

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