Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{x: 2 x+5=9\}$
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{x: 2 x+5=9\}$
$U = N$ set of natural numbers
${\{ x:2x + 5 = 9\} ^\prime } = \{ x:x \in N$ and $x \ne 2\} $
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