$$569-99 \times 23+( \frac{ 88 \times 5 }{ 86y } ) \times 9x$$
$\frac{1980x}{43y}-1708$
$$569-2277+\frac{88\times 5}{86y}\times 9x$$
$$-1708+\frac{88\times 5}{86y}\times 9x$$
$$-1708+\frac{5\times 44}{43y}\times 9x$$
$$-1708+\frac{220}{43y}\times 9x$$
$$-1708+\frac{220\times 9}{43y}x$$
$$-1708+\frac{220\times 9x}{43y}$$
$$-\frac{1708\times 43y}{43y}+\frac{220\times 9x}{43y}$$
$$\frac{-1708\times 43y+220\times 9x}{43y}$$
$$\frac{-73444y+1980x}{43y}$$
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$\frac{4\left(495x-18361y\right)}{43y}$