2/5=-56/x

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Solution for 2/5=-56/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2/5 = -56/x // + -56/x

2/5-(-56/x) = 0

56*x^-1+2/5 = 0

56*x^-1 = -2/5 // : 56

x^-1 = -1/140

-1 < 0

1/(x^1) = -1/140 // * x^1

1 = -1/140*x^1 // : -1/140

-140 = x^1

x = -140

x = -140

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