The answer for this problem is 3.66666666.
If the other person drank 8 bottles, that means that there were 4 bottles left
(12 - 8 = 4 bottles)
So you drank 4 out of 12, or 4/12 of the bottles, which simplifies to 1/3 of the bottles.
If 2 of 12 eggs are cracked, then 10 are not cracked.
SO
10/12=5/6=about 0.83
0.83 of total eggs not cracked is also equivalent to 83 percent as asked in the problem :)
Answer: n = -4
3n - 3 = 4n + 1
Add 3 to both sides
3n = 4n + 4
Subtract 4n from both sides
-n = 4
Divide by -1 on both sides
n = -4