The sum of a number x and 1/2 is equal to 4 which set of equations correctly represents

Step-by-step explanation:

Given that the unknown number is x

To find the equation we need to add the unknown number to the known number and equate the results I. e

Hence the equation is

x + 1/2 = 4

We can go further by solving for x

Subtracting 1/2 from both sides of the equation one

x = 4-1/2

x = (8-1) / 2

x = 7/2

Also

7/2+1/2 = 4