Final answer:
Subtracting 1/2 from both sides of the equation x + 1/2 = 4, we find the value of x is 3.5.
Step-by-step explanation:
The sum of a number, x, and 1/2 is equal to 4.
To find the value of x, we set up the equation x + 1/2 = 4 and solve for x.
Subtracting 1/2 from both sides of the equation, we get x = 4 - 1/2.
When we calculate this, we find that x = 3.5.
Therefore, the value that represents x is 3.5.