2/5+2/x=1

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Solution for 2/5+2/x=1 equation: 


D( x )

x = 0

x = 0

x = 0

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

2/x+2/5 = 1 // - 1

2/x+2/5-1 = 0

2*x^-1 = 3/5 // : 2

x^-1 = 3/10

-1 < 0

1/(x^1) = 3/10 // * x^1

1 = 3/10*x^1 // : 3/10

10/3 = x^1

x = 10/3

x = 10/3

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