match the equation with the step needed to solve it.

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