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प्रश्न
Simplify: 5a – [6a – {9a – (10a – `bar("4a" - "3a"))}]`
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उत्तर
5a – [6a – {9a – (10a – `bar("4a" - "3a"))}]`
= 5a – [6a – {9a – (10a – 4a + 3a)}]
= 5a – [6a – {9a – 10a + 4a – 3a}]
= 5a- [6a – 9a + 10a – 4a + 3a]
= 5a – 6a + 9a – 10a + 4a – 3a
= 5a + 9a + 4a – 6a – 10a – 3a
= 18a – 19a
= – a
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