20/(5x)=1/3

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Solution for 20/(5x)=1/3 equation: 


D( x )

5*x = 0

5*x = 0

5*x = 0

5*x = 0 // : 5

x = 0

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

20/(5*x) = 1/3 // - 1/3

20/(5*x)-(1/3) = 0

20/(5*x)-1/3 = 0

4*x^-1 = 1/3 // : 4

x^-1 = 1/12

-1 < 0

1/(x^1) = 1/12 // * x^1

1 = 1/12*x^1 // : 1/12

12 = x^1

x = 12

x = 12

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