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प्रश्न
Subtract:
5a − 3b + 2c from a − 4b − 2c.
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उत्तर
(a − 4b − 2c) − (5a − 3b + 2c)
= a − 4b − 2c − 5a + 3b − 2c
= a − 5a − 4b + 3b − 2c − 2c
= − 4a − b − 4c
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