(4m + 5n ) + ( 5m + 4n)?
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3
Answer:
9(m+n) is the answer
Hope it helps you
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(4m + 5n) + (5m + 4n)
= 4m + 5n + 5m + 4n
= 9m + 9n
= 9(m + n)
Hope it helped...
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