Hello and Good Morning/Afternoon:
Let's take this problem step-by-step:
We know lines 'PQ' and 'RS'
==> are parallel to one another
==> therefore, corresponding angles formed by the two lines
intersection with the line 'ON' have the same measure
for example:
∠PTN = ∠RUT
∠NTQ = ∠TUS
∠PTU = ∠RUO
∠UTQ = ∠OUS
Since ∠PTN = ∠RUT
⇒ ∠RUT = 2x + 122
By Vertical Angle Theorem:
- opposite pairs of angles formed by two intersecting lines are equal in
measure
∠RUT = ∠OUS
Answer: 8
Hope that helps!