4y/x=20

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Solution for 4y/x=20 equation: 


D( x )

x = 0

x = 0

x = 0

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

(4*y)/x = 20 // - 20

(4*y)/x-20 = 0

4*x^-1*y = 20 // : 4*y

x^-1 = 5*y^-1

-1 < 0

1/(x^1) = 5*y^-1 // * x^1

1 = 5*x^1*y^-1 // : 5*y^-1

1/(5*y^-1) = x^1

x = 1/(5*y^-1)

x = 1/(5*y^-1)

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