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Simplify.

6.1m−4.2+3.7n−9.4m+5.5n


−3.3m+9.2n−4.2

5.9mn−4.2

15.5m+9.2n−4.2

I don't know.


Answer :

Answer: Answer #1

Step-by-step explanation: −3.3m+9.2n−4.2  Brainliest please?