7/2.1=5.6/x

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Solution for 7/2.1=5.6/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/2.1 = 5.6/x // - 5.6/x

7/2.1-(5.6/x) = 0

7/2.1-5.6*x^-1 = 0

-5.6*x^-1 = -3.33333333 // : -5.6

x^-1 = 0.59523809

-1 < 0

1/(x^1) = 0.59523809 // * x^1

1 = 0.59523809*x^1 // : 0.59523809

1.68000001 = x^1

x = 1.68000001

x = 1.68000001

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