551, it is too big of a number so it is the outlier. :)
Answer:
1
Step-by-step explanation:

(12/-3)+(-14*4)
(-4)+(-56)
[-60]
-- i dont understand what you mean by "opposite of" so i assumed you meant negative??
Answer:
d = 12.21
Step-by-step explanation:
1) Subtract 4 from both sides.
d = 16.21 - 4
2) Simplify 16.21 - 4 to 12.21.
d = 12.21
Check the answer!
⇒ d + 4 = 16.21
1. Let d = 12.21.
⇒ 12.21 + 4 = 16.21
2. Simplify 12.21 + 4 to 16.21
16.21 = 16.21
Done!
Thanks,
Eddie