Final answer:
To add the given expressions, combine the like terms to get the simplified expression.
Step-by-step explanation:
To add the given expressions (2m - 3) + (3n − 1) + (3m + 1), we first combine the like terms. Like terms have the same variables raised to the same powers. In this case, we have m terms and n terms. Combining the m terms gives us 2m + 3m = 5m. Combining the n terms gives us 3n. And combining the constant terms gives us -3 + (-1) + 1 = -3. So, the final simplified expression is 5m + 3n - 3.
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