Question

Solve for x when the sum of a number, x, and 1/2 is equal to 4.

A) 4 = x + 1/2; x = 4 1/2
B) 4 = 1/2x; x = 2
C) 4 = 1/2x; x = 8
D) 4 = x + 1/2; x = 3 1/2

Answer 1

To solve the equation 4 = x + 1/2 for x, we subtract 1/2 from both sides to isolate x, resulting in x = 3 1/2. Therefore, the correct answer is D) 4 = x + 1/2; x = 3 1/2.

Step-by-step explanation:

To solve for x when the sum of a number, x, and 1/2 is equal to 4, we start with the equation 4 = x + 1/2. To find the value of x, we need to isolate x on one side of the equation. We can do this by subtracting 1/2 from both sides of the equation:

4 - 1/2 = x + 1/2 - 1/2

Which simplifies to:

3 1/2 = x

Therefore, the correct answer is D) 4 = x + 1/2; x = 3 1/2.