3.5/20=10.5/x

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Solution for 3.5/20=10.5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

3.5/20 = 10.5/x // - 10.5/x

3.5/20-(10.5/x) = 0

3.5/20-10.5*x^-1 = 0

-10.5*x^-1 = -0.175 // : -10.5

x^-1 = 0.01666667

-1 < 0

1/(x^1) = 0.01666667 // * x^1

1 = 0.01666667*x^1 // : 0.01666667

59.999988 = x^1

x = 59.999988

x = 59.999988

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