\"\"

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The expression is \"\"

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\"\"           (Substitute \"\")

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Simplify the expression uisng order of operations (PEDMAS).

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First operation is evaluating the expression within the parentheses.

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\"\"                 (Add: \"\")

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Next operation is multiplication.

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\"\"                      (Multiply: \"\")

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\"\"

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The value of the expression is 4.2.