$30 - (8 + 12)$ is equal to .

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Solution

To solve the mathematical expression, let's follow the PEMDAS rule.

In the given expression, addition, parenthesis and subtraction operations are present.

$∴$ First, we need to solve expression inside the parenthesis
$\Rightarrow 30 - (8 + 12) = 30 - (20)$
Now, solve the resultant expression
$= 30 - 20 = 10$

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