Answer:
x = 7
Explanation:
If we suppose line q and line r parallel lines the the angle that is given as 108 and the angle represented with 15x + 3 are alternate interior angles and such
angles has equal measures so we can write the following equation:
15x + 3 = 108 subtract 3 from both sides
15x = 105 divide both sides by 15
x = 7