-7/x=20

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Solution for -7/x=20 equation: 


D( x )

x = 0

x = 0

x = 0

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

-7/x = 20 // - 20

-7/x-20 = 0

-7*x^-1 = 20 // : -7

x^-1 = -20/7

-1 < 0

1/(x^1) = -20/7 // * x^1

1 = -20/7*x^1 // : -20/7

-7/20 = x^1

x = -7/20

x = -7/20

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