Find the value of x.x°43°136°99°=x

The question seems to be about finding the value of x in a geometric problem, where x, 43°, 136°, and 99° are angles of a quadrilateral.

The sum of the interior angles of a quadrilateral is 360°.

So, we can set up the equation as follows:

x + 43° + 136° + 99° = 360°

First, add the known angles:

43° + 136° + 99° = 278°

Then, subtract this sum from the total degrees in a quadrilateral:

360° - 278° = 82°

So, x = 82°.