4/x=10/30

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Solution for 4/x=10/30 equation: 


D( x )

x = 0

x = 0

x = 0

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

4/x = 10/30 // - 10/30

4/x-(10/30) = 0

4/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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