What’s the answer?? Need Help Plz

Answer:
B. 52°
Step-by-step explanation:
You need to add both equations and set them equal to 90 degrees because the other side is 90 degrees and the entire line must equal 180.
So...
[tex]5x-22+4x+4=90\\[/tex]
Combine like terms
[tex]5x+4x= 9x and -22+4= -18[/tex]
So:
[tex]9x-18=90\\[/tex]
Add 18 to both sides
[tex]9x=108\\[/tex]
Divide 9 on each side to get X=12.
Then you must plug in the 12
[tex](4(12)+4)\\(48+4)\\52[/tex]