What is the simplified form of 3a + 4 - 2a?

What is the simplified form of 3a + 4 - 2a?

• A. a + 4
• B. 4a + 4
• C. 5a + 4
• D. 2a + 4

Answer: (A)

To simplify the expression 3a + 4 - 2a, you start by identifying and combining like terms. Like terms are the terms that contain the same variable raised to the same power. In this case, the terms that involve the variable "a" are 3a and -2a. First, combine 3a and -2a: 3a - 2a = 1a, which can also be written simply as a. Next, retain the constant term, which is +4. Now you can put these results together: 1a + 4 simplifies to a + 4. Thus, the simplified form of the expression is a + 4, which corresponds to the correct answer. This demonstrates the process of combining like terms and shows how to arrive at the simplified expression.

To simplify the expression 3a + 4 - 2a, you start by identifying and combining like terms. Like terms are the terms that contain the same variable raised to the same power. In this case, the terms that involve the variable "a" are 3a and -2a.

First, combine 3a and -2a:

3a - 2a = 1a, which can also be written simply as a.

Next, retain the constant term, which is +4.

Now you can put these results together:

1a + 4 simplifies to a + 4.

Thus, the simplified form of the expression is a + 4, which corresponds to the correct answer. This demonstrates the process of combining like terms and shows how to arrive at the simplified expression.