I’m pretty sure X= 43 as all of those angles should add up too 360. So, the angle of 47 is going to be the same opposite as angles that are opposite eachother are always equal. The 90 degree angle will be reciprocated on the opposite angle so if we do 47 + 47, which will be 94 from 360, we will get 266, then, if we add 90 + 90, (180) and subtract that from 266, we will get 86. Now, x is opposite another angle meaning that they both equal the same amount, meaning you half 86 to get the value of x. X would equal 43.