Answer:
x = 16
Explanation:
If an and b are parallel to each other, both angles should be equal to eachother. So, we just the find the value of x such that both values are equal to eachother.
7x + 2 = 8x - 14
(both both x's to the same side)
8x - 7x = 2 + 14
x = 2 + 14
x = 16