\"\"

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The expression is \"\"

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\"\"                     (Substitute -3 for x and 4 for y)

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To simplify the expression follow the order of operations: (PEMDAS)

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1.     Evaluate the expressions inside Brackets/Parenthesis (P).

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2.     Evaluate Powers/Exponents (E).

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3.     Multiply and/or Divide in order from left to right (MD).

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4.     Add and/or Subtract in order from left to right (AS).

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A simple technique for remembering the order pf operations is turned into phrase

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Please Excuse My Dear Aunty Sally”\"\" \ \ In the given expression there are no grouping symbols.

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First operation is multiplication.

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

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Next operation is addition.

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\"\"                               (Add: \"\")

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Next operation is subtraction.

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\"\"                                      (Subtract:\"\")\"\"

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The value of the expression is \"\".