4/x=20/15

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Solution for 4/x=20/15 equation: 


D( x )

x = 0

x = 0

x = 0

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

4/x = 20/15 // - 20/15

4/x-(20/15) = 0

4/x-4/3 = 0

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

x^-1 = 1/3

-1 < 0

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

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

3 = x^1

x = 3

x = 3

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