Respuesta :

Answer:

Step-by-step explanation:9m -3m +2n = 6m+2n

Answer:

6m+2n

Step-by-step explanation:

Rearrange the order of the equation so it's like this:

9m-6m+2n

then you subtract 3m from 9m and you get 6m so the answer is 6m+2n

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