7/42=6/x

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Solution for 7/42=6/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/42 = 6/x // - 6/x

7/42-(6/x) = 0

7/42-6*x^-1 = 0

-6*x^-1 = -1/6 // : -6

x^-1 = 1/36

-1 < 0

1/(x^1) = 1/36 // * x^1

1 = 1/36*x^1 // : 1/36

36 = x^1

x = 36

x = 36

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