What is the simplified form of 7a + 3 - 2a?

• A. 5a + 3
• B. 6a + 3
• C. 7a + 3
• D. 2a + 3

Answer: (A)

To simplify the expression 7a + 3 - 2a, you start by identifying and combining like terms. In this case, the like terms are the terms that contain the variable 'a'.

First, combine the coefficients of 'a':

• You have 7a and then you subtract 2a from it.

• This can be calculated as 7 - 2 = 5.

So, you have 5a.

Next, do not forget the constant term:

• There is a constant term +3 in the expression which remains unchanged.

Putting it all together, you end up with 5a + 3. This shows clearly how the original expression simplifies correctly to this form.

Therefore, the answer is indeed the simplified expression 5a + 3.