300/(3x)=84

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Solution for 300/(3x)=84 equation: 


D( x )

3*x = 0

3*x = 0

3*x = 0

3*x = 0 // : 3

x = 0

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

300/(3*x) = 84 // - 84

300/(3*x)-84 = 0

100*x^-1 = 84 // : 100

x^-1 = 21/25

-1 < 0

1/(x^1) = 21/25 // * x^1

1 = 21/25*x^1 // : 21/25

25/21 = x^1

x = 25/21

x = 25/21

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