30/25=100/x

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Solution for 30/25=100/x equation: 


D( x )

x = 0

x = 0

x = 0

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

30/25 = 100/x // - 100/x

30/25-(100/x) = 0

30/25-100*x^-1 = 0

-100*x^-1 = -6/5 // : -100

x^-1 = 3/250

-1 < 0

1/(x^1) = 3/250 // * x^1

1 = 3/250*x^1 // : 3/250

250/3 = x^1

x = 250/3

x = 250/3

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