from the book Q$4)$ Consider the following snapshot of a system where three processes $($P$1,$ P$2,$ and P$3)$ and one

resource type exists. Assume that there are five free instances available.

What is the maximum possible value of $x+y+z$ such that the system will be in a safe state? Give

respective $x,y,z$ values.Operating system concepts by green gagne $,$abraham and peter

Tenth edition