please help
how to do this

Answer:
10) 37 + x = 54
x = 17
angle measures: 37°, 17°
11) 2x + 10 = 70
2x = 60
x = 30
angle measures: 70°, 70°
12) 2x + 3x - 8 = 78
5x = 86
x = 17.2
angle measures: 34.4°, 43.6°
13)a. XZ
b. YZ
c. XY