Evaluate the expression: x – [y + {x – (y + x)}]

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Solution

The simplified form of the expression x – [y + {x – (y + x)}] is calculated as follows

= x – [y + {x – (y + x)}]

= x – [y + {x – y – x}] .....[1 Mark]

= x – [y + x – y – x]

= x – x + x – y + y ......[1 Mark]

We get,

= x ........[1 Mark]

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