250/20=750/x

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Solution for 250/20=750/x equation: 


D( x )

x = 0

x = 0

x = 0

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

250/20 = 750/x // - 750/x

250/20-(750/x) = 0

250/20-750*x^-1 = 0

-750*x^-1 = -25/2 // : -750

x^-1 = 1/60

-1 < 0

1/(x^1) = 1/60 // * x^1

1 = 1/60*x^1 // : 1/60

60 = x^1

x = 60

x = 60

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