someone tell me what website to go on and find x+z-h=___

To find the value of x + z - h, you don't necessarily need a specific website. This is a simple mathematical equation that can be solved using basic arithmetic operations.

To find the value, follow these steps:

1. Gather the values for x, z, and h. Make sure you have the exact numerical values for each variable.

2. Substitute the values into the equation x + z - h.

3. Perform the arithmetic operations in the equation. Start by adding x and z together, and then subtract h from the result.

For example, if x = 5, z = 3, and h = 2, you would calculate:

5 + 3 - 2 = 6

Therefore, the value of x + z - h is 6.

You can use a calculator or even a pen and paper to solve this equation. No specific website is required for such a simple calculation.