У=100-25х

The equation you've provided is in the form of a linear equation, where the value of Y is determined by the value of X. To solve for Y, you need to substitute a value for X and then solve the equation.

Let's do an example. Suppose we substitute X = 2 into the equation:

Y = 100 - 25(2) Y = 100 - 50 Y = 50

Therefore, when X = 2, Y = 50.

You can continue this process by substituting different values for X to find the corresponding values of Y.