Answer:
X = 20.25°
Explanation:
Interior angle of the same side are suplementery which means their sum is equal to 180° .
So 38° +( 8x - 26°) = 180°
12° + 8x = 180° .... Simplify 38 and 26
8x = 180°- 12° .... taking 12 to the left side it
change the sighn to -ve
8x = 162° .... simplify
8x/8 = 162°/8 .... dividing both side 8
x = 20.25°