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प्रश्न
Simplify:
`"a"-(2"a"-overline(4"a"+3"a"))`
योग
उत्तर
`"a"-(2"a"-overline(4"a"+3"a"))`
= a − (2a − 4a − 3a)
= a − 2a + 4a + 3a
= 8a − 2a
= 6a
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Concept of Substitution
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