6/x+7-7/x

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Solution for 6/x+7-7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

6/x-(7/x)+7 = 0

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

-1*x^-1 = -7 // : -1

x^-1 = 7

-1 < 0

1/(x^1) = 7 // * x^1

1 = 7*x^1 // : 7

1/7 = x^1

x = 1/7

x = 1/7

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