What is the measure of arc S T?
Line segment SU is a diameter of circle V.

Circle V is inscribed with triangle S T U. Line S U is a diameter. Lines S T and T U are secants. Angle S T U intercepts arc T U and has a measure of 34 degrees.

56°
68°
112°
163°

Idk i can’t read that

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.