212/x=420

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Solution for 212/x=420 equation: 


D( x )

x = 0

x = 0

x = 0

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

212/x = 420 // - 420

212/x-420 = 0

212*x^-1 = 420 // : 212

x^-1 = 105/53

-1 < 0

1/(x^1) = 105/53 // * x^1

1 = 105/53*x^1 // : 105/53

53/105 = x^1

x = 53/105

x = 53/105

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