How do you simplify 5m - 2m + 7?

To simplify 5m - 2m + 7, combine like terms to get 3m + 7.

In algebra, simplifying an expression means reducing it to its simplest form. Here, we start with the expression 5m - 2m + 7. The terms 5m and -2m are called "like terms" because they both contain the variable 'm'. To simplify, we combine these like terms by performing the subtraction: 5m - 2m equals 3m.

The number 7 is a constant term, which means it doesn't change and doesn't have a variable attached to it. Since there are no other constant terms to combine it with, it remains as it is.

So, after combining the like terms, the simplified expression is 3m + 7. This process of combining like terms helps to make the expression easier to work with, especially when solving equations or further manipulating the expression.