I don't know, but check google or bing if you can.
Answer:
12
Step-by-step explanation:
50
check the picture below.
Answer: Y = -10
-x + y = -27
-17 + y = -27
+17 +17
Y = -10
You can also check your work by plugging in the X and Y values and it should equal -27 . So -17 + -10 equals -27.