Question

from algebraic expressions
m-n+m+n

pls answer fast it's urgent​

Answer 1

Answer:

2m

Step-by-step explanation:

m-n+m+n

m+m +n -n

2m +0

2m

Answer 2

Answer: 2m

Step-by-step explanation

m-n+m+n

-n and +n get cancelled

2m.