\"\"

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The expression is \"\"

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\"\"                  (Substitute \"\")

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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”\"\"

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First operation is multiplication.

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

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

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

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Next operation is subtraction.

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\"\"                                  (Commutative property: a + b = b + a)

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

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\"\"                                                (Subtract  \"\")

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\"\"

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The value of the expression is \"\".