Answer: 22 hours 28 minutes
Step-by-step explanation: 0843 means 8:43am and 0711 means 7:11am military time. In that order there is 22 hours 28 minutes from 8:43am today to 7:11 am tomorrow. The question itself is rather confusing so if this is not what you meant please let me know and I will re-do it.
0=-2x+2x+1
0=+1
there is no solution for this question
I believe its like 20% but I'm not completely sure. hope it helps some:)