-2/9=7/x

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Solution for -2/9=7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

-2/9 = 7/x // - 7/x

-(7/x)-2/9 = 0

-7*x^-1-2/9 = 0

-7*x^-1 = 2/9 // : -7

x^-1 = -2/63

-1 < 0

1/(x^1) = -2/63 // * x^1

1 = -2/63*x^1 // : -2/63

-63/2 = x^1

x = -63/2

x = -63/2

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