21/5/x=10

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Solution for 21/5/x=10 equation: 


D( x )

x = 0

x = 0

x = 0

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

(21/5)/x = 10 // - 10

(21/5)/x-10 = 0

21/5*x^-1 = 10 // : 21/5

x^-1 = 50/21

-1 < 0

1/(x^1) = 50/21 // * x^1

1 = 50/21*x^1 // : 50/21

21/50 = x^1

x = 21/50

x = 21/50

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