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प्रश्न
Solve:
(7m − 5n) − (−4n − 11m)
बेरीज
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उत्तर
(7m − 5n) − (−4n − 11m)
= 7m − 5n + 4n + 11m
= 7m + 11m − 5n + 4n
= 18m − n
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