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Subtract the sum of 6mn + 3m –12n from the sum of -13mn –2m -3n and 11m –18n –20mn.
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1 vote
Subtract the sum of 6mn + 3m –12n from the sum of -13mn –2m -3n and 11m –18n –20mn.

User Ruediste
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1 Answer

1 vote

Answer:

-3m

Explanation:

User Knocked Loose
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