Answer:
7) second answer
8) first answer
Step-by-step explanation:
hope it helps.
13
2 + m- 1 + m
3m +1 -m
Combine like terms
3m-m +1
2m +1
We can split the m's
m+m +1
And we can rewrite 1 as 2-1
m+m+2-1
m+2+m-1
Rearranging the order