-4/x=-7

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Solution for -4/x=-7 equation: 


D( x )

x = 0

x = 0

x = 0

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

-4/x = -7 // + 7

7-4/x = 0

-4*x^-1 = -7 // : -4

x^-1 = 7/4

-1 < 0

1/(x^1) = 7/4 // * x^1

1 = 7/4*x^1 // : 7/4

4/7 = x^1

x = 4/7

x = 4/7

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