X=8/3 or 2.666 is the answer
Answer and explanation
You add all of the digits together a see if it is divisible by 3 sooooo...........
5+3+6+1=15/3=5
Step-by-step explanation:

Answer:
-1
Step-by-step explanation:
Anything divided by itself is going to be 1 and since we are dividing it into a negative number its going to be a negative output so the answer would be -1