Simplify 5m - 2m + 3n + n.

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Multiple Choice

Simplify 5m - 2m + 3n + n.

Explanation:
Combining like terms is the idea here: you add or subtract coefficients of terms that have the same variable. In this expression, the m-terms are 5m and -2m. Subtracting 2 from 5 gives 3, so those combine to 3m. The n-terms are 3n and n (which is 1n). Adding the coefficients 3 and 1 gives 4, so those combine to 4n. Since m and n are different variables, they can’t be combined further. Put the parts together to get 3m + 4n.

Combining like terms is the idea here: you add or subtract coefficients of terms that have the same variable. In this expression, the m-terms are 5m and -2m. Subtracting 2 from 5 gives 3, so those combine to 3m. The n-terms are 3n and n (which is 1n). Adding the coefficients 3 and 1 gives 4, so those combine to 4n. Since m and n are different variables, they can’t be combined further. Put the parts together to get 3m + 4n.

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