What is the result of combining 12m - 2m + m?

• A. 12m
• B. 11m
• C. 10m
• D. 9m

Answer: (B)

To combine the terms in the expression 12m - 2m + m, start by identifying the like terms. In this case, all the terms include the variable m and can be combined since they share the same variable.

1. First, take the positive terms: 12m and m. The coefficient of m in "m" is 1, so when you add them together:

12m + 1m = 13m.

2. Next, you'll deal with the negative term, which is -2m. To combine this with the total you just calculated:

13m - 2m = 11m.

Thus, when all the terms are combined, the final result is 11m. This is why the correct answer is B, since it accurately represents the simplified form of the original expression. Understanding how to combine like terms effectively ensures accuracy in simplifying algebraic expressions.