To simplify the expression:
\[ 8 + 4 + 0 + 8 + 4 + 20 \]
Let's add the numbers together step by step:
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First, let's add \(8\) and \(4\): \[ 8 + 4 = 12 \]
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Now, add \(0\): \[ 12 + 0 = 12 \]
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Add the next \(8\): \[ 12 + 8 = 20 \]
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Then add \(4\) again: \[ 20 + 4 = 24 \]
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Finally, add \(20\): \[ 24 + 20 = 44 \]
Thus, the fully simplified expression is:
\[ \boxed{44} \]