40+80/x=80

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Solution for 40+80/x=80 equation: 


D( x )

x = 0

x = 0

x = 0

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

80/x+40 = 80 // - 80

80/x-80+40 = 0

80*x^-1 = 40 // : 80

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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