Answer:
D) 6
Step-by-step explanation:
[tex] {82}^{o} + (6x + 6) = 20x + 4 \\ [/tex]
An exterior angle of a triangle is equal to the sum of its two interior opposite angles.
[tex] 82+ 6x + 6 = 20x + 4 \\ 88 + 6x = 20x + 4 \\ 88 - 4 = 20x - 6x \\ 84 = 14x \\ \frac{84}{14} = x \\ 6= x \\ [/tex]
