Answer:
x = 7, y = 24
Step-by-step explanation:
23x -16 + 8x - 21 = 180 because they are supplementary angles
31x - 37 = 180
31x = 217
x = 7
23(7)-16 = 7y - 23 because they are vertical angles
168 = 7y
y = 24
I know the answer come follow me to see
See below.
9+(-4), or 9-4
7+(-2), or 7-3
5+0
They all equal 5.
-hope it helps
28