20/2=150/x

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Solution for 20/2=150/x equation: 


D( x )

x = 0

x = 0

x = 0

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

20/2 = 150/x // - 150/x

20/2-(150/x) = 0

20/2-150*x^-1 = 0

-150*x^-1 = -10 // : -150

x^-1 = 1/15

-1 < 0

1/(x^1) = 1/15 // * x^1

1 = 1/15*x^1 // : 1/15

15 = x^1

x = 15

x = 15

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