Simplify : "X" − "Y" − {"X" − "Y" − ("X" + "Y") −Overline("X"-"Y")} - Mathematics

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Sum

Simplify : `"x" − "y" − {"x" − "y" − ("x" + "y") −overline("x"-"y")}`

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Solution

`"x" − "y" − {"x" − "y" − ("x" + "y") −overline("x"-"y")}`

= x − y − {x − y − (x + y) − x + y}

= x − y − {x − y − x − y − x + y}

= x − y − x + y + x + y + x − y 

= 2x

Concept: Simplification of Expressions
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Chapter 11: Algebraic Expressions - Exercise 11 (E) [Page 147]

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Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (E) | Q 1.02 | Page 147
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