SOLUTION: (21m+15n)-(9n-4m)
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Algebra: Distributive, associative, commutative properties, FOIL
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Question 751342
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(21m+15n)-(9n-4m)
Answer by
jim_thompson5910(35256)
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(21m+15n)-(9n-4m)
21m+15n-9n+4m
(21m+4m)+(15n-9n)
25m+6n
Final Answer: 25m+6n
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