x is partly constant and partly varies as y.

express x interms of y and constants h and k

x = h + ky

or maybe
x = k + hy

To express x in terms of y, h, and k when x is partly constant and partly varies as y, we can use the following equation:

x = k + hy

In this equation, k represents the constant part of x and hy represents the varying part of x with respect to y.

To express the variable x in terms of y and constants h and k, we need to determine the relationship between x and y.

Let's assume that x is partly constant and partly varies as y. This can be expressed as:

x = c + k*y

Here, c represents the constant part of x, and k represents the factor by which x varies with y. Now, we need to determine the value of c.

To find the constant term c, we can substitute a specific value of y and the corresponding value of x into the equation. Since x is partly constant, we need to choose a specific value of y for which x remains constant.

For example, let's say that when y = 0, x remains constant. Substituting these values into the equation, we get:

x = c + k*0
x = c

This shows that when y = 0, x equals the constant term c, which implies that c is the constant part of x.

Therefore, the expression for x in terms of y and constants h and k is:

x = c + k*y