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zhannawk [14.2K]
3 years ago
6

Can someone please help me out with this. Please don't just answer for points.

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0

Answer:

m - n - 4

Step-by-step explanation:

9m + 4n - 1 - 6m - (n + 3) - (2m + 4n)

= m - n - 4

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