2-10/x=7

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Solution for 2-10/x=7 equation: 


D( x )

x = 0

x = 0

x = 0

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

2-(10/x) = 7 // - 7

2-(10/x)-7 = 0

2-10*x^-1-7 = 0

-10*x^-1 = 5 // : -10

x^-1 = -1/2

-1 < 0

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

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

-2 = x^1

x = -2

x = -2

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