Final answer:
To simplify the expression 4a + 7 + 2a, combine the 'a' terms to get 6a and leave the constant term as is, resulting in a simplified expression of 6a + 7.
Step-by-step explanation:
The question involves combining like terms which is a basic algebraic skill. You are given the expression 4a + 7 + 2a and are asked to simplify it. To do this, you need to combine the terms that have the same variable, which in this case is 'a'.
- First, you combine the terms with 'a': 4a + 2a = 6a.
- Then, since the number 7 does not have an 'a', it remains as it is.
- The expression in simplest form is 6a + 7.
To check if the answer is reasonable, you can consider the expression as a collection of apples. For example, if you have 4 apples, add another 2 apples, and add 7 other fruits (not apples), in the end, you have 6 apples and 7 other fruits. Hence, the simplified expression accurately represents the original question.