If x = 4, what is the value of 2x + 3?

To find the value of the expression (2x + 3) when (x = 4), you substitute the value of (x) into the expression.

1. Start with the expression: (2x + 3).

2. Substitute (x) with 4:

[

2(4) + 3

]

3. Calculate (2(4)), which is 8.

4. Then, add 3 to this result:

[

8 + 3 = 11

]

Therefore, the value of (2x + 3) when (x = 4) is 11. This aligns with the calculations confirming that the correct answer is indeed represented as (C), 11. Each step clearly illustrates how to manipulate and evaluate the expression to arrive at the answer, reinforcing the importance of substitution in algebraic equations.