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प्रश्न
Subtract : 3a − 5b + c + 2d from 7a − 3b + c − 2d
बेरीज
उत्तर
7a − 3b + c − 2d
3a − 5b + c + 2d
− + − −
4a + 2b − 4d
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Combining like Terms
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