\"\"

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The expression is \"\".

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\"\"          (Substitute x = 3.6, y = 6.6 and z = -11)

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\"\"               (Absolute value of \"\")

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

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To subtract –11 means add 11.

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\"\"

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= 8                                           (Add: \"\")\"\"

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The value of the expression is 8.