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प्रश्न
Simplify:
− (y − x) − (x + y − `overline(2"x"+"y")`)
उत्तर
− (y − x) − (x + y − `overline(2"x"+"y")`)
= − (y − x) − (x + y − 2x − y)
= − y + x − x − y + 2x + y
= x − x + 2x − y − y + y
= 2x − y
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