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Pair Real Number Sum

Let $ (x,y) $ be a pair of real numbers satisfying \[ 56x + 33y = \frac{-y}{x^2+y^2}, \qquad \text{and} \qquad 33x-56y = \frac{x}{x^2+y^2}.\]Determine the value of $ |x| + |y| $.

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$\frac{a}{b}$
.
0
=
%

$a^n$
$a^{\circ}$
$a_n$
$\sqrt{}$
$\sqrt[n]{}$
$\pi$
$\ln{}$
$\log$
$\theta$
$\sin{}$
$\cos{}$
$\tan{}$

$($
$)$
$[$
$]$
$\cap$
$\cup$
$,$
$\infty$