Respuesta :

sskeo45

Answer:

A

Step-by-step explanation:

3m+1-m is 2m+1

2+m-1+m is 1+2m

Answer:

Answer is:A

Step-by-step explanation:

3m + 1 - m = 3m - m + 1

3m - m + 1 = 2m + 1   this is equivalent to  2 + m - 1 + m  because

2 + m - 1 + m = m + m + 2 - 1 = 2m + 1