7/-3=7/x

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Solution for 7/-3=7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/(-3) = 7/x // - 7/x

7/(-3)-(7/x) = 0

7/(-3)-7*x^-1 = 0

-7*x^-1 = 7/3 // : -7

x^-1 = -1/3

-1 < 0

1/(x^1) = -1/3 // * x^1

1 = -1/3*x^1 // : -1/3

-3 = x^1

x = -3

x = -3

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