I will upvote and give brainliest answer

x = 78 degrees

Step-by-step explanation:

All triangles add up to 180 degrees. If you can see, the star has a triangle in the middle, Triangle BJE. Angle D is given as 31 degrees, and this means that Angle E is also 31 degrees, since they are the same. In the Triangle BJE, we now have 2 angles, 47 and 31.

So add these 2 together:

47 + 31 = 78

180 - 78 = 102

This means that Angle BHI is 102, and since a straight line is 180, to find x, all you need to do is subtract 180 - 102:

x = 78 degrees.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

step-by-step explanation: