Simplify the expression 3a + 5 - 2a.

• A. a + 5
• B. 5a + 5
• C. 2a + 5
• D. 3a - 5

Answer: (A)

To simplify the expression 3a + 5 - 2a, the goal is to combine like terms effectively. The terms containing the variable 'a' in this expression are 3a and -2a.

First, you combine these terms:

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

Next, you bring down the constant term, which is +5.

Therefore, after combining the like terms, the simplified expression is a + 5.

This matches the provided answer, making it the correct choice as it accurately reflects the simplified form resulting from combining like terms in the original expression.