Respuesta :

Answer:

9m+4n

Step-by-step explanation:

Answer:

9m+4n

Step-by-step explanation:

this equation, according to me, can be written in two other ways

(3m+5n) - (-6m+n) or 3m+5n-n+6m (this is the same equation without the parenthesis and it is distributed

3m+5n-n+6m= 9m+4n

6+3=9

5-1=4

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