128/x=20

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Solution for 128/x=20 equation: 


D( x )

x = 0

x = 0

x = 0

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

128/x = 20 // - 20

128/x-20 = 0

128*x^-1 = 20 // : 128

x^-1 = 5/32

-1 < 0

1/(x^1) = 5/32 // * x^1

1 = 5/32*x^1 // : 5/32

32/5 = x^1

x = 32/5

x = 32/5

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