Question #bad8a
1 Answer
May 21, 2016
2m+n-8n-m+3m=4m-7
Explanation:
2m+n-8n-m+3m
2m, m, and 3m have the same variable 'm' while n and 8n have the same variable 'n'. Hence, we group them together.
So
2m+n-8n-m+3m
=(2m-m+3m)+(n-8n)
=4m-7n
