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December 30th, 2018, 08:44 AM   #1
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From: nigeria

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set problem

given that n(PnQ)=n(PnQ)' find x and hence the U
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December 30th, 2018, 10:48 PM   #2
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Given what?
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December 31st, 2018, 11:17 AM   #3
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Assuming that all four labeled regions are disjoint, I get

$\displaystyle 4= x + (x-16) + (x-11)$

but that yields a non integral answer. $\displaystyle x=\frac{31}{3}$

So the union would be $\displaystyle 4+(31/3-16)+(31/3-11)$ but this makes no sense.

Last edited by mrtwhs; December 31st, 2018 at 11:21 AM.
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