Answer:
48
Explanation:
Vertical angles are congruent
7x - 22 = 4x + 8 {Add 22 to both sides}
 7x = 4x + 8 + 22
 7x = 4x + 30 { subtract 4x from both sides}
  7x - 4x = 30
 3x = 30
 x = 30/3
x = 10
4x + 8 = 4*10 + 8
 = 40 + 8
 = 48
7x - 22 = 7*10 - 22
 = 70 - 22
 = 48