The answer is 1.5 or 1 1/2
Answer:

Step-by-step explanation:
Suppose we have a triangle WXY whose internal angles are:



The sum of the measures of the angles must be 180°, thus:

Simplifying:
15x + 15 = 180
Subtracting 15:
15x = 165
Dividing by 15:
x = 11
Thus, the measure of angle Y is


6god is watching from views
Cool, but we need more information...
X=-9
-x=9 so x=-9 since you inverse the sign