Answer:
X = 10°
Explanation:
angle UGF + angle FGE = 180°. They are supplementary angles or angles on a straight line
thus assuming angle FGE = y, we can write the following equation
y + 9x + 4 = 180°
y = 180 - 9x - 4
= 176 - 9x.... equation 1
angles inside a triangle add up to 180°
3x - 4 + 68 + y = 180°
3x + y = 116
y = 116 -3x. .... equation 2
Equate equation 1 to equation 2
176 -9x = 116 - 3x
-6x = -60
X = 10