Match the equation with the step needed to solve it.

1 .
subtract 2m
2m - 1 = 3m
2 .
add 1
2m = 1 + m
3 .
subtract m
m - 1 = 2
4 .
subtract 1
2 + m = 3
5 .
add 2
-2 + m = 1
6 .
subtract 2
3 = 1 + m