To calculate the expression \( 27 + 4 \times (8 - 4) \), follow the order of operations (parentheses, exponents, multiplication and division from left to right, addition and subtraction from left to right).
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Start with the parentheses: \[ 8 - 4 = 4 \]
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Now substitute back into the expression: \[ 27 + 4 \times 4 \]
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Next, perform the multiplication: \[ 4 \times 4 = 16 \]
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Finally, substitute this result back into the expression: \[ 27 + 16 = 43 \]
Therefore, the value of the expression \( 27 + 4 \times (8 - 4) \) is \(\boxed{43}\).