To simplify the expression (2m - 3) + (3n - 1) + (3n +1), you need to combine like terms.
First, distribute the addition operation to each term within the parentheses:
2m - 3 + 3n - 1 + 3n + 1
Now, group the like terms together:
(2m) + (-3) + (3n) + (-1) + (3n) + (1)
Combine the coefficients of similar variables:
2m + 3n + 3n - 3 - 1 + 1
Combine the constants:
2m + 6n - 3
So, the simplified expression is 2m + 6n - 3.
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