To solve for x in the equation xy = k when we know the values of y and k, we can rearrange the equation to isolate x.
We start with the equation:
xy = k
Substituting the known values (y = 4 and k = 7) into the equation, we get:
x(4) = 7
To solve for x, we divide both sides of the equation by 4:
x = 7 / 4
This simplifies to:
x = 1.75
Therefore, the value of x when y = 4 and k = 7 is 1.75.