Pleaseee help me

x = 13

Step-by-step explanation:

∠ EGB = ∠ AGF = 77° ( vertically opposite angles )

AB is a straight line so the 3 angles on it sum to 180° , that is

90 + x + 77 = 180

x + 167 = 180 ( subtract 167 from both sides )

x = 13

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya