To solve for x, we need to isolate it on one side of the equation.

x + 1325:5 = 4099

First, let's simplify the expression on the left side of the equation:

1325:5 = 265

Now, we can rewrite the equation as:

x + 265 = 4099

To isolate x, we need to subtract 265 from both sides of the equation:

x + 265 - 265 = 4099 - 265

This simplifies to:

x = 3834

Therefore, the value of x is 3834.