Add: (2m−3)+(3n−1)+(3m+1)

(2m - 3) + (3n - 1) + (3m + 1) = 2m - 3 + 3n - 1 + 3m + 1

Simplifying the expression further, we get:

= (2m + 3m) + (3n) + (-3 - 1 + 1)

Combining like terms, we have:

= 5m + 3n - 3